Tbh I might be biased since Sword was my first game (long story), but I wasn't too happy about the Rockruff and Dratini lines not being included originally. I do understand how it can be frustrating though. I really want to move my shiny Pidgey from Let's Go to Sword but... you know...
I think the line for me would've been Vulpix/Ninetales, Growlithe/Arcanine, Mimikyu, any of the Eeveelutions, Lapras, Clefable/Clefairy, Bounsweet/Steenee/Tsareena, Gastly/Haunter/Gengar, Riolu/Gengar, among a few others. I'm happy with a lot of the Pokemon they included in the DLCs though, but *pats her poor Pidgey*.
With your second question, I would've been mad. Mainly because of Eevee's evolutions. True, I've fallen in love with a bunch of Galar Pokemon (*coughs* I'm looking at you Wooloo, Sobble, Scorbunny, Yamper, and Nickit), but there's so many others... that I... I can't live without Eevee okay?
My little sister doesn't know completely about the Dexit. And the reason I haven't told her about the full extent of it is because she's perfectly happy right now with her Pokemon and I can't deal with her complaining. I just tell her that Galar just doesn't have a bunch of Pokemon native to other regions due to environment, etc. Kind of like how you wouldn't necessarily expect to see a cardinal in the Bay Area.
Being a Seahawk fan I can't help but notice the NFC West reference, intentional or not haha. I didn't really care a whole lot until I watched a video on how the took most models from the 3DS games and put them into SW/SH with minor to no changes to their models. That pissed me off. So you have working models that you CAN but into the game but choose to paywall them instead? I have a hard time believing that is wasn't to push the DLC because honestly, the DLC was bad I just wanted more Pokemon to transfer from home.
The DLC stories could not have carried them so they had to put some of the most beloved Pokemon in with them to push them, I wouldn't have paid for a deer riding a horse otherwise...