A better lesson is that a board can't govern a company if the company won't follow its lead. They were misaligned with almost the entirety of the employees.
The misalignment is not accidental, it was carefully developed over the last few years.
I agree it's not that deep - they wanted to join a hypergrowth startup, build cool stuff, and get paid. If someone is rocking the boat, you throw them off the boat. No mission alignment needed! :)