I like stylistic partisans. If somebody blatantly states that their style is the best, I probably won't buy it, but I will listen to them. The really committed will show me the best of what they have and intensely argue its value, and I will learn more faster than from someone more equivocal.
One of my friends is ranked in (and loves) a chinese dueling system. He found out I'd been exposed to it and wanted to know my thoughts. That's a lie. He wanted to hear me gush about it's great superiority over everything else and how I had become a true believer. He asked what I thought. That's what he got: too linear; very easy to throw them into walls; fast hands but pathetic power; most damning, it was a dueling system and trained for face to face challenge matches- the guys I played with had absolutely no idea what to do if attacked from the rear or flank.
He argued everything (I had, after all, insulted his holy thing) but to the last point he just said, "You just turn into the attack, from that point on it's just like dueling."
This is called begging the question. If you are getting pounded from the rear or sides- or grabbed- turning into it is not something you 'just' do. It's difficult and it is a skill, a critical skill for ambush survival.
Watch for that word 'just'. When you catch yourself saying "Just do it" (sorry, Nike) and you have no real idea how to do it, that is a blind spot. The mechanism of that little 'just' is to convince yourself that whatever it is is easy. It's just turning. Just hit the guy. Just move. Don't just stand there. Just be yourself.
It's not just (I had to) a martial thing. Look for it in politics, in overly-simplified morality, in finance... all the places where answers are easier than facts to base them on.