The reason I think both Michaels and Austin shit on the match is because if you think of the two men at their peak, the match should be one of the all time greats, especially considering its a Wrestlemania main event.
On top of this, both Austin and Michaels were nowhere near 100% for the match and both perhaps think that the occasion deserved them to be fit. But you cant blame them, both physically killed themselves for their matches.
I'd still rate it highly. It delivered emotionally and dramtically. It also launched Austin into history.