All I'm going to say is: Calm down.
You uh, do realise the Anime itself is mainly marketed towards kids, correct? Look at XYZ, it did phenomenally overseas, here in the west, but in Japan? It was a disaster. Ratings dropped quite heavily. They might be trying to attract their younger and main watchers once more, instead of the older ones here. Which might be their plan with the anime; one series for the older fans, the other for the younger ones, that is if we're looking at it pattern wise. Besides, Generations itself is targeted for solely the older audience.
Also, it's not the animation, if you look at it, it's the same quality, only a different style, which is fine really. You're really overreacting way too much here. Could it be better? I guess. But honestly, it actually looks pretty good compared to the poster. Am I going to watch it as I did XYZ? No, probably not. Do I think it's worse than BW already? Fuck no. BW was a disaster. S/M is looking to be better than that, though being better than BW isn't exactly high praise.