If Weishaar was called for stalling in that situation, it was probably the wrong call. In the finals of last year's NCAA tournament, Tommy Rowlands of Ohio State won the heavyweight championship over Steve Mocco of Iowa in exactly the same manner — each time Mocco stood up, Rowlands dropped to a leg and hung on until a stalemate was called.
The judgement in a stalling call in this situation has to be weighed with format of the overtime; by rule, the top man's job is to ride the guy out for 30 seconds, while the bottom guy is supposed to escape. For that reason, stalling on the top man would have to be pretty blatent to be called. And from what I've seen of Jake Weishaar over the years, he's not that kind of wrestler. While I didn't see the match, it doesn't sound like the right call to me.