What more do I want? Ok you talk about disrupting the opponents balance or somehow manipulating him so that you get a MOMENTARY opening as breaking structure, right? If you get that SAME opportunity and opening by not physically manipulating the opponent then you have not broken his structure, right? Even though you have the exact same situation. In both situations what you did was get position.
I also do not agree that making your opponent step or turn or whatever breaks his structure since he still has his structure intact and it does not mean his balance was disrupted. This is why I think the term breaking structure is confusing.
My major problem with all this is that it is at most a minor consideration since it is going to occur very infrequently in sparring or fighting. I think you are blowing it all out of proportion to its true usefulness in fighting. Realistically your training should be less concerned with this sort of thing and instead focused on important stuff like getting position - and this stuff may be one if many tactics for getting position- and landing solid shots. This is just one of many many means of getting position.
So I guess what I am saying is this is a limited tactic for getting position. It is like a snap down in wrestling. The goal or objective in wrestling is not to do a snap down but to get to his legs and you do that by getting position on him. The snap down is a tactic to SET UP an opportunity for position. Like all tactics one means to and end. Some wrestlers use it and some don't. This is why I am saying the focus should not be on your so called breaking structure and that your use of that tactic as some indication of skill level but focus first and foremost on getting position on the guy to land a solid shot.