I actually think Q11 is quite questionable as well. Just because we dont intend to fold if villain shoves does not mean that shoving ourselves becomes the only viable course of action.
We hold as many as 18 outs (9 diamonds, 3 extra tens, 3 aces, 3 kings), with at least 10 clean (lose aces vs AQ, lose kings, 9D QD vs QQ JJ 22). This still doesnt make shoving the best action, it just means we possibly have equity to call to a shove. Even though BU is in steal position and has a wide open raise range, how wide is their range to call 3bet then flat call 2QJ flush draw flop?
Again I think its a question of players and limits. Perhaps many more players call 3bet, call cbet, all with intent to float on higher limits? It is incredibly rare on bronze limits and the players that do it do it every single hand, so reading them isnt exactly difficult.
Given that we are on a draw rather than a made hand and have nothing to protect, by direct shoving we turn our hand into a bluff-with-outs. Id much rather see if we couldnt get a free / cheap card here, and there is no way that playing check-call to shove is infinity times worse (0 vs 3) than shoving directly. If shove is 3, check-call is at least 2.
I really do think Q11 and Q1 answers here are simply not appropriate to typical bronze NL5-10 opponents.