I can't agree with the idea that physical repetition is a suitable analog for any social interaction. For example, a hetero male can't get better at attracting women without being in the actual, concrete situation as it unfolds, which is exactly what is happening in coached dating situations as well.

Edit: I would go a step further and wager our brains aren't calibrated for arguing random other human beings in person we don't share assumptions, behaviors, and/or appearances with; I mean people have a hard enough time communicating with the people they've chosen to commit the rest of their life too, it's hard to conceive of being able to master a marriage without being in the marriage.