I'm not saying his opinions wrong. While I do think they're milking it a bit too much, you don't just stop producing a successful franchise. You strike while the iron's hot or whatever it is.
That said, he put forth his opinion in a profoundly dickish manner and that's not how you make friends. If he's not interested in making friends, a forum is probably not the place for him.
Addition: Jens has a point, too. The fastest way to run a good idea to shit is to rush out subpar products in quick succession. See Guitar Hero 3 for a recent and entirely too relevant example.
That said, I love Aerosmith and Jens is a douche bag for not liking classic Aerosmith.