late addition: the OSI is a consortium of software and cloud companies; the ones whose business model is ruined by SSPL. They aren't neutral and we probably shouldn't let them be the arbiters of what counts as open source.
Foundations run in a more non-profit, community-oriented way include the FSF, EFF, and Debian, none of which made any significant comment. Debian has excluded SSPL software, but their criteria for inclusion are stricter than simply "is it open source?" and they announced it was simpler to replace them with their superior non-SSPL equivalents than to actually tackle the question.
