I mean, it all comes down to how that situation is handled. If OP was a dick about it, then yeah, it serves to filter out an arrogant assbag. But if OP simply

I mean, it all comes down to how that situation is handled. If OP was a dick about it, then yeah, it serves to filter out an arrogant assbag. But if OP simply explained that the interview led them to believe the position was a more junior/entry level than they were expecting, that seems fine. Further, to even explain that the interview process seems to just be a checkbox process seems fine; if you work in a critical thinking/creative role, checkbox culture is an absolute brain drain. Getting that out in the open, in honest and respectful terms, is a fine thing to do. Why wouldn't it be? Further, any hiring institution that feels the need to build in 'tricks' to filter people out of the interview process is toxic. Even if the people they're filtering are arrogant assbags.