You really should, the show is aimed at young kids, Not like 15 to whatever age you or others are. I'm just guessing 15 as a base, not infering you are. And why metagross? If Ash were to get anothe psudeo, I would wager it be something like aeigislash or honedge. There really isn't anything stopping that. As for flying types, it's been stated time and time again, they each are dual typed and more their second type then their first. But hey, you want to take issue with them having wings and there being almost no electric type users against his flyng types, then go nuts. No one will care in all honesty. As for noibat, we could easily see it evolve before the league. Make it be used like phanpy was in hoenn. He didn't get much use in Johto but evolved fast in Hoenn. Noibat could do the same, just in Kalps. It clearly gains confidence and the ability to fly as shown in the opening. So it could easily evolve fast. As for the other people. Not trying to sound rude here, But NO one gives two flyng fletchinders about Iris. It happened, you can't change that no matter how hard you try or whine. Fact is, we probably will never see her again. Basically anyone who gets to Johto is never seen again. Dawn was expction, but most loved her as opposed to the many that hated Iris, even though she still has some fans. Also her dragonite was garbage anyway, let's be honest there. Ash could easily get any pokemon and have it become OP like it's nothing. We just have to wait for that moment, it happens every Saga. Now as for your last point, the leaders are made by Gamefreak, so it's not entirely the anime's fault for that. Sure some could be stronger, but the Leadersjn Kalos so far aren't to bad, they average, maybe a little above average. And sure some strong rivals would be cool, but those rivals don't usually show up till around the end.
Do you think Your so-called ''Younger Kids'' likes the way The Anime is written now ?
Most people who claim Pokemon as Kids Anime are the same people who wants Pokemon to be a ''Korean Drama Show'' that focus on every people's life.
They themselves forget Pokemon is a simple Kids Anime about Ash becoming Pokemon-Master ! It not about 3 people trying to achieve 3 different goals , That how Drama shows like ''One tree hills'' work .
So question ,
If Pokemon is for Young Kids then why it trying to be like a Korean Drama show ???
Also , I guess You actually don't know about Kids Anime and Believe Pokemon to be in same catagory as ''Dragon Tales'' !That where you wrong !
Kids Anime has different category ! Pokemon is not in same category as Doreamon where MC remain a loser forever to be abused by other , Pokemon is not in same Category as ''Crayon Shin-chan'' which is aimed toward Adult .
Pokemon is in 3rd category Kids Anime which are written in Shouene style ! Such as Beyblade , Digimon and Yugioh .
And In Shouene Anime , The MC grows ! He get stronger & stronger with achieving New Power & Rank in every series. But Pokemon is not doing it , Is it ?
Furthermore , Kids Anime character doesn't use polite term of speech to talk ! Unlike Ash & his current friend .
Truth is , Pokemon so far off from its own category Kids Anime that Younger Kids stop watching it causing low TV rating and DVD Sales !
If you read post then you would see all my idea come from the consideration that Pokemon is a Kids Anime !
The reason I want Serena to catch a ''Slowpoke'' that frustrate her because that what Kids loves to see! The reason I think Tyruntrum as a good choice for Ash because
Kids loves Dinosaur!
Do you think Kids has any problem with Ash keeping Goodra ? Do you think Younger Kids gives a Dam care about Ash being OP or Other Character lacking Development ?
NO , They doesn't care abut that . We also didn't care about this when we were younger !
That why we loved Original Series despite Misty & Brock's lack of development because we knew Pokemon was about Ash's goal and All our attention was toward him !
We start to give a dam care about Other character development when we got Older ! Off course , Pokemon Original was also watched by teengers as well.
Truth is , Pokemon being a Kid Anime is nothing more then a DIRTY EXCUSE to justify the creepy writing in Pokemon anime ! Current Pokemon anime badly written because of Kids , Its all Kids fault While Writers are totallllly innocent!
Everything that Writers doing right now it totally opposite of a Kids Anime! Keeping Ash an underdog and kicking out his stronger Pokemon is not how a Kids anime work.
Also Because Pokemon is a Kids Anime , I want Ash to replace Hawlucha with a Naughty, lazy and selfish Ganger that always annoy others ! Its the same reason I want Ash to be followed by an younger ''Talking Latius'' who usually makes slide comment about Ash to piss him off.