What's the reasoning behind the Pokemon dub voices these days?

They dubbed over Togedemaru, Mimikyu, etc? Ew. Are there any Alola pokemon who get to keep their Japanese voices in the English dub?

It's such a waste of everyone's time, money, energy, etc though. I don't know why they do it; "because TPCI" is about the only explanation I can come up with, really.