I don't think he was ever bad here. Average/acceptable but not outstanding, sure. But not like some complained about him.
EDIT I also think Osgood deserves more credit than most give him
EDIT 2 he was also way past his primeyears those seasons, I thought ppl had unrealistic expectations, and despite that he still played pretty good
I think the 2008 playoffs is when Hasek was most criticized. Of course, it ended with him getting benched. I wasn't here in 2002 (did the internet even work back then?), so I don't know what was being posted late in the year and during the first games against Vancouver. Guessing that was bad too.