This conveys what I wanted to say but failed to say earlier.

I have to remind myself that it is okay to criticize the form of an argument, as long as you don't treat arguments against a form as arguments against the content (e.g. you made a typo thus what you said is lies). ... though saying "this is complicated and confusing" on a site where most topics discussed are complicated and confusing fits in a certain category bordering to "not constructive criticism", which might have helped in blinding me.