I really really love having the Balcony scene before Order 66, and then having him killing the younglings.
I’ve always felt that scene as a loss, and this change makes it work for me.
(And I’m a little biased here, but I think it would help with the flow of Order 66 in my edit.)
And as said having Anakin’s crimes at the temple be the turning point in his characterization makes so much more sense than his slaughter of the separatists.
I really thought I it is an excellent change and works really really well in melding the two Anakins. And giving us a truly fallen man.