Yeah, you're right. The term I chose to use is suboptimal. On the other hand, "instrumental rationality" is not the name of our shared ideology (and that is what I was referring to). It is the name of a category that a large part of our shared ideology fits into. I'm still unsure of what to refer to it as, but the name I used wasn't a good one.

Nitpick: Just last month, there was a article in main with "rationalism" in the title used in the way I was referring to. I have updated away from believing it is common usage in this community, but it still doesn't seem very uncommon "around these parts".

Note: I myself have criticised this usage of "rationalism" before for similar reasons.