I don't care deeply and am not enough of a regular participant in AA to rightly have a strong opinion one way or the other. But, generally, I think that the idea that the literal words of the big book are sacrosanct, have mystical properties, and must be literally treated like scripture is bad and reflects one of my least favorite parts of AA culture. The whole thing about the higher power, people have so much of a hard time with that based on their feelings about religions and Jesus and whatever diety and the nuns or their mother or authority and on and on and on, and we try and tell them the truth which is that it does not matter and this is not that and that God does not need to be an old man on a cloud or whatever it is. And then truth be told so many AA meetings feel exactly like a Bible study. Some amount of that is inevitable, it is in fact a similar thing, but thumping the book and quoting the scripture and holding the book and dissecting the sentences and examining the gospel of Bill. I always feel a little twinge of something when I say that it isn't religious and it's not church - it doesn't need to be and it isn't exactly but uhhhh yeah man.
Anyways, they'll get to sell a lot more books and that language is much more clear. I don't think of the big book as being that dense but it really is a lot of dickety aught aught onion on the belt getting run over by a trolley swell language of the time. Hopefully it helps some people to have updated language to help them on the path.