I have a huge soft spot for SSPL. I believe the FSF is too ideological and the OSI has conflicts of interest and that’s mainly why it wasn’t accepted. It’s unfortunate, because a new, stronger AGPL that closes more loop holes would’ve been amazing.
I wouldn’t say FSF is too ideological. They just don’t have a political strategy for how they will bring about the changes they desire. To really change things towards a new mode of production, you need a way for people in the new mode of production to earn a living. Also, their ideology is wrong in its lack of emphasis on software workers’ rights and the relations of production