Personally, I fail to understand why this game needs to exist, considering that the mechanics of the main series Pokemon games are rather simple to understand even for the youngest of players, and even though the meta-game can became rather complex with all the different strategies out there (along with Super Smash Bros), Pokemon is really not that complicated of a franchise when you think about it, since it's a franchise that's made to appeal to everyone, not just a specific crowds such as Genwunners and app-playing casuals (like this game is) or to people who enjoy playing the games competitively for tournaments and such like the VGCs. I mean, I've been playing the games since Gen 2, and I've never cared about competitive play or such things, I just like playing through the games for fun, especially when there are multiple different ways people can enjoy
Really, I feel like this is more of a thing to attempt to make the franchise appeal more and more (and by that, I mean seemingly strictly) to the Pokemon Go players given how TPC seems to be prioritizing the app above all else anymore, especially considering how corporations are obsessed with mobile phones anymore, especially given how cheap and simplistic they are to make. If this game is trying to bring in the Pokemon Go players into the mainline series, I don't think it's going to work very well, considering how the players of mobile apps rather not put any actual thought into how they play games and instead prefer simplistic, repetitive actions that get old very quickly, especially in a day and age when virtually everywhere you go, people seem to pay more attention to what's on their phones than to what's going on around them.
This is especially true considering how Pokemon Go has split the fandom down the middle into what is essentially two different fandoms that are seemingly incompatible with each other given how drastically different they view the franchise. I mean, I understand that they want people to enjoy the franchise in different ways, like with the Ranger and Mystery Dungeon games, but the problem is that they are putting all their eggs into one basket and expecting everyone to enjoy Pokemon the same way simply because a mobile app of it made huge money for them, all while ignoring everything else.
I mean, there are much better ways they could simplify the franchise rather than just trying to make the games more and more like Pokemon Go just to appeal to that crowd. I mean, you don't have to take out any Pokemon or any mechanics, you could just simplify the typing system to make competitive play much easier and make certain Pokemon feel less broken in competitive play. It's really easy to fix the problems the main series have, so why throw everything away just to appeal to a more mainstream mobile crowd such as the ability to battle wild Pokemon in favor of making the games more and more like the app?