I agree with that.You could argue that the reason the defender stops is because he knows he’s not going to get around Jurbo.
He’s denied the opportunity to move through and then Turbo took the space Moretti could have been in if Jurbo wasn’t in the way.
I really don’t think we should be asking referees to guess what defenders might or might not do if an obstructing player isn’t there.
The key is in the wording the bunker uses too - he is denied the opportunity. Whether he would or wouldn’t have moved there or whether he would or wouldn’t have made the tackle is irrelevant.