No. But I do think you're not really looking at this situation objectively. Here's what you've said:
1. It's clear that an objective board should have fired RMS
2. We shouldn't make these decisions based on mobs
Additionally, we know he was fired. With that information, you can't make any conclusions. How and why are you so certain that some board didn't weigh the evidence and pass objective judgement? The problem with this fear of "cancel culture" (which as others have mentioned is really just "holding powerful people accountable when they do bad things culture"), is that so far I haven't seen any evidence that the bad things people fear have happened. RMS did a bad thing. He faced consequences for a thing that even you agree was a bad thing. Your only concern is that it is possible, not even certain, that the method by which he faced consequences for an action that we both agree was bad and deserved consequences might have not have been up to a standard that few employees anywhere get.
I want to stress that last bit: very few employees are afforded the privilege of an impartial committee to decide whether or not they should be fired in any circumstances. You're arguing that RMS should get a stronger protection than your average employee (either that or that workers should, in general, have much, much stronger protections than we currently give them).
tl;dr:
> I believe their role is to raise awareness of situations like to the point where the above should transpire.
To me, this looks like exactly what happened. Why are you complaining?