This is not 'uncontroversial'.

The survey in question did not actually ask whether they thought MIRI were cranks. In fact, it asked no questions about MIRI whatsoever, and presumably most respondents had never heard of MIRI.

Every respondent but Loosemore who did specifically mention MIRI (Demski, Carrier, Eray Ozkural) were positive about them. (Schmidhuber, Legg, and Orseau have all worked with MIRI, but did not mention it. If you regard collaboration as endorsement, then they have all also apparently endorsed MIRI.)

You are still failing to address the original point.