Syag Lchochma,
it isn’t the condemnation of the movement that is being complained about. It is the condemnation of the individuals in the movement. ZD is saying that if many of them are just following their Rabbis, as we are all instructed to do, then why is it right to deal so harshly with them on an individual level ie, inclusion in minyan.
I agree with your sentiments here about condemnation of the individuals. I think it is vitally important to step carefully and, as the rules for fighting fair states: attack the problem, not the person. B”H most of the Orthodox people I interacted with before I became frum myself behaved in that manner, even though they would say everything that was said in the kol korei about the movement I grew up in.
When I read the kol korei, I do not see the condemnation of people that you, zahavasdad, and others seem to see. To me, it seems to be laser-focused on the OO movement and its leaders. Everything else (the wine, minyan, etc.) is extrapolation, not interpretation.
Furthermore, zahavadad’s point which you repeated (they are just following their leaders) seems to provides the best justification for issuing such a kol korei.
If I am missing something, please let me know.