I dont think my grandchildren enjoyment of the books would be changed one jot by the changes, frankly. they are still massively entertaining and the illustrations amazing. I also have not seen a single example of a proposed change that is not benign.
We may argue about fat and enormous but that doesn't make any difference as to the meaning the children will get, and it it helps just a few children then so much the better.
"Fat" now unfortunately is not simply descriptive, it is used as a term of abuse and mockery. Will it make a difference? I don't honestly know, but it's an honest effort.
BTW, one of the targets of change was the book "The Witches"
I quote from a Mirror article:
"The book reads: "I do not wish to speak badly about women. Most women are lovely. But the fact remains that all witches are women. There is no such thing as a male witch.
"On the other hand, a ghoul is always a male. So indeed is a barghest. Both are dangerous. But neither of them is half as dangerous as a real witch."
I agree with a tweaking of the last sentence and anything else in the book along the same lines.
Its in some men's minds that women are inherently more "dangerous": the reality for girls and women is that men are far more dangerous taking stats as a whole:
I'd rather buy my Granddaughter the book of Moana, which she adores (its a film where Moana, who is to become a leader of a tribe, bravely sets out to save her people (and an environment).