The fat is arguably the only fixable thing, or at least the cheapest. You can't "just stop eating so much" and fix a wonky nose or stick out teeth.
Calories aren't magic and hard to fathom.
Normalizing being overweight is going to kill a lot of people early.
I mean... it's weird that they (the publishers, or possibly the estate) think it's okay to retroactively edit these books at all, but the specific edits they have made make it all the more bizarre.
It's really very strange to take a view that weight is sacred, but teeth, noses, and other aspects of general appearance are not.