I do see your point, but I do think productivity software is a bit different.
As far as whoever submitted it; if Andy, zzd10h, Lyle or whoever made a piece of software they originally released on Aminet or allowed to be submitted there, we should be thankful they did so in the first place.
If they at a later point decides they want to make a updated version, and in the process make revenue off their work; I defintly dont see the problem with that.
With PP the rights where bought, but other than that, same applies.