It is not just about demographic.

You are supposed to be familiar with many standard arguments; but many of them make no sense if you have different priors, because they have too little evidence on their side (AI researcher interview series seems to illustrate well that some kind of experience can give you evidence against a few key points).

If you find Hanson's arguments about the core of FOOM concept stronger than Eliezer's, you will have less incentive to familiarize yourself to everything that you should remember to communicate on what you called "our level", because it makes no sense without this key point.

So disagreement on object level in the very beginning leads to infamilarity with required things. Nothing too strange here.