LC,
Only you would consider the cases comparable.
1) With the OU, it has to do with claimed membership and giving credence to. The are allowing such a synagogue membership in their organization. Chareidi gedolim do not claim affiliation with the few lunatic radicals. Huge difference, but make no difference to you.
2) The uproar about OO membership in the OU is not just suddenly and about this one item. This is a long standing matter of contention amongst OU leadership for a long time.
3) It is a blatant, bald face lie by you to say that commenters smeared all MO. The most vocal commenters are people who consider themselves MO.