Law and morality are not the same thing, so I am going to do a mental find-and-replace to get back to discussing morality.
In an economy where finding a job is not easy, losing your job is both a threat to your abillity to feed yourself, to keep a roof over your head, and a threat to your social environment. You are going to lose a lot of your social interactions.
Managers are effectively dictators, since they run every little detail of your (work-) life. If they decide that you must do your job one-handed, then they can do that. If they decide your toilet breaks will get timed, then they can do that.
If you and all your colleagues have a great idea for a change? Then that change will only happen if the manager is a nice guy, in a good mood, willing to listen, and they see a way for this to make them or their managers richer. That’s no different from a dictatorship, or the leader of a street gang, if the comparison to nation-states is confusing.
Corporations are not democratic, employees are not free. The freedom to starve is no freedom at all, and the only other freedom a corporate employee has is the freedom to move, which is a massive social upheaval not only for you but also for your family. This is no different that feudal serfs.
Yes, the bee thing is violence. but it is violence not only in self-defense, but also in defense of the thousands of others this manager is going to hurt. I’m not a fan, because I think there are better ways to change destructive managers, but there are moral arguments for this, now very hypothetical, scenario.
I don’t see a difference between this situation and the other situations where we think violence is an acceptable option to handle non-violent problems (think of cops preventing a theft).