It's edition bashing because, unlike you, Ariosto did not state "if there is no fiat, then X."
I believe that this was intended to be implied. I.e., "If what is said in what I am quoting is true, then this is the logical result". The InterWeb makes it hard to give other posters the benefit of the doubt, I know. Especially when one feels that one is not being given the same benefit. As I've said before, after 10 minutes in a pub (or other social setting for the non-drinkers), most of these things would sort themselves out.
If you want an admission that DM Fiat still exists. Yes it does. But there are more rules in place now than at the beginning of the game to help the DM adjudicate common occurances without mainly having to rely on DM Fiat.
I am not at all certain that this is a good thing.
I will certainly agree that it helps a mediocre GM be a better GM, but I think it has a tendency to drag down good GMs as well. YMMV on this; it is my opinion.
At the back of the 1e DMG, Gary Gygax admonished the DM to consider what is best for the game first, best for an individual campaign second, and best for any given player(s) third. As time has gone on, I am more and more of the mind that Gygax knew what he was talking about.
More rules over rulings may be good for individual players, or individual campaigns (those with mediocre or poor GMs), but I don't think that it is what is best for the game.
Again, this is heavy YMMV and IMHO country I am walking in here!
RC