PUAs do teach aggressive touch escalation, less talking more body language. Don't ask to kiss her, kiss her. That kind of thing.

To the extent that this happens, it is an efficient adaptation to prevailing norms: the escalation is not "spontaneous" at all - although that's obviously a desired effect - but is carefully calibrated to minimize 'regret' (to the extent that this is possible based on prevailing signals). PUA also teaches other techniques that balance out active escalation ("push-pull", "freeze-out"). We're talking about a very broad toolkit which can adapt to a variety of scenarios.