>>50900882I think they just don't want it to overshadow Ash's team at this point BECAUSE it's so popular.
Like really, nips begged Greninja to return for years, for those kids who grew up with XY? This is their Charizard, with unironically organic popularity.
So they gave some lips service to them with Greninja training Lucario and sent Greninja away to cut vines, not wanting it to overshadow Lucario.
When Alain was revealed for the master 8, he trended hard on both sides - West and Nips.. with most of them begging for a rematch between the frog and the lizard.
It's obviously beyond popular and they cannot actually retcon it without some severe consequence. Honestly, can you see a 100b$ multi-media franchise actually doing this kind of stuff? This is just pants-on-head dumb.