I should hope it's a coup. GNU will lose far more if all these people leave frustrated than if RMS is no longer its boss - even if RMS never harasses anyone again (which seems vanishingly unlikely).
GNU has clearly outlived its usefulness putting social justice before free software.
These are not mutually exclusive ideas. In fact, they're complimentary if you turn your head and squint a bit; the Four Freedoms are targeted at minimizing the creation of a classist world where some people control software and others merely run it. Avoidance of a classist world is a "social justice" concept.