I'd like to chime in with my displeasure in regards to the Shinobi-Iri change as well, and to echo a lot of what has been said.
This change kills a lot of flavor, both in terms of playstyle and aesthetic.
By pairing Shinobi-Iri with Ninja Run or Beast Run, combined with some tailored slotting, we were able to realize the character fantasy of having that speedster ninja without being locked to the standard run animation just, you know, sped up. We could have the monstrous and beastly minded terror barreling through the Etoiles. And though it might mean sacrificing set bonuses to do it, we could keep up with the other speedsters while being true to our concepts.
A whole lot could be said about movement animation cycles available to characters in general (Walk, looking at you), but to keep it on point to the suggested changes in this thread: people have invested various resources, time, influence, creative energy into. With this change all of this is negated, in a game that is all about that character fantasy, about spending time deliberating between costume pieces, about crafting a fun biography, about choosing different powers and the ways those powers look to make fun, unique individuals.
Hamstringing so many of those individuals with this change like this feels like a mistake.