Agree with what was said about Hipparion - I don't even have a desire to own him because of the perk shut-off, even though I love Ran. But with new breeds only getting released a few times a year Hipparion quickly becomes useless unless you're still in the process of the coat collection trophy, he really should work the way Ran does.
I love the new donkey, it's cute and I'm glad after so long that donkeys are getting some new breeds.
I don't know how the Draft VA thing works because I haven't tested it but it sounds like you can give one of the VA coats to a Draft now, not that they added new coats to the VA? If they added new VA Draft coats I have mixed feelings since that's not really what the item was for, but if it's just that you can put VAs on Drafts now, that's fine.
I do want the GA to remain species-specific as others do (as far as I understand it still is), but the VA I don't mind if it's less exclusive. There were only 3 species on it anyway, one of which only had 3 coats and all the rest could be crossed to dozens of the "wrong" breed and some coat combos which don't even exist on the game so I don't think the change is that dire.
Finally the customization of donkeys, very good!

That was long overdue. It's so difficult to BLUP them that giving them a boost in the form of the more perk-ified custom coats will hopefully be a benefit!