Perception and execution that is what i call P/E

I'm not sure what your point is. High P/E is a sign of overvaluation and a bad investment. Just because the market is irrational doesn't mean you should sign up for to be a bag holder.

Pretty sure OPs point is that Tesla has shitty results, has a CEO that lives “any publicity is good publicity” as a mantra and the company valuation is through the roof.

Yes and none of those are good things.

They're good things right now for Elon and Tesla. Whether they will continue to be is up in the air. But, it definitely works as a strategy, at least temporarily.