Lots of guys put up with it. One difficulty is you can't just tell someone not to lean, drag, drape. You have to explain how to not do it while doing other things like step sequences or moving. And the woman often has to do it in heels, and even if she does't have to wear them, she may want to![...]Many leaned, pulled, dragged, and draped (this is Argentine tango, but that look is supposed to be an illusion there . . .), and I just put up with it. In the end, it cost me a hernia I didn't even feel at first. At least it wasn't my spinal column.
I danced socially with a guy who, in a surprised voice, remarked that I really moved myself and he wished his wife did. Probably would have been better if he'd ended after the compliment and moved on to the compliant..... but I get it. I told him my pro focused on how I could move myself and made me do it in many lessons. It took a while to do it. (And no.... I have not fully mastered it!! But provided the lead is clear enough, I move myself more than lots of social dancers. )
I don't know who their teacher is. I am under the impression the two mostly dance with each other. Also, they prepare a fair number of show cases, or demonstrates with each other. So it could be that the the amount of time learning choreo and "polishing" for a showcase that is happening soon squeezes out working on things like "moving". Similar things could happen with any flaw especially if neither partner knows it actually is a flaw. I mean, if you mostly dance with 1 partner, you don't necessarily know that she shouldn't drape her weight or not move.
With the guy above, I think he honestly didn't ever realize the woman can move herself and that she's supposed to. Naturally, he wouldn't have complained about that to a teacher. (He still might not because complaining about your wife in front of your wife is dicey. You'd have to think a bit and make the request to be you think you both need to work on moving because you think perhaps you look slow and stationary. You could say something like, "I notice when I watch X and her teacher, they really cover a lot of ground and it looks more dynamic. How can we do that?" There are pitfalls of taking lessons with your spouse. )