"Vote blue no matter who" means exactly what it says.
His stance is "vote blue for these socdems (or socdem+'s) or I don't care either way". He literally got into the media cycles saying "I will not vote Gavin Newsom for president".
It is totally fine to have skepticism of his tactics, rhetoric, positions, or behavior, but "vote blue no matter who" demonstrably does not apply.
That said, it doesn't bother me because Hasan is a media figure, not a political leader. It is up to us as on the ground political operative to provide leadership in our orgs and communities and "play off" of his growing presence in the political sphere and steer people in a better direction, since his platform is larger than ours. I firmly believe that denouncing him in front of liberals or reactionaries does not suit this purposes in most cases, and constitutes an unforced error in rhetoric.
Even in this thread you can see reports of how hasanabi heads are ripe for becoming effective comrades in the western left wing movement. I agree with you that he plays around with Democratic party electoral politics more than I would like, but also that is what gives him.his platform, and it is comedy gold as more people have a meltdown over his takes (since most of them align with hexbear). Same goes for Mamdani, sieze the moment and guide people farther along!