Only if your goal really is sex by hook or by crook. Clearly, not having sex will not increase your capacity to just plainly and simply get sex. But if someone finds seduction appealing because they want confidence and social skills, there is no obvious reason they have to take the suggested tricks to the point of actual sex under false pretenses in order to develop them into skills.

Kicking the air in front of someone would be more analogous to practicing your confidence tricks talking to a dressmaker's dummy, then never actually going out and talking to women.