> because apparently they were vital cogs who somehow "continue to have access to trade secrets"
I don't think this is a sane take. Knowing trade secrets and being a "necessity" are not related. They were, and you are, and I am, replaceable. Our possible deep esoteric knowledge of secret sauce maybe makes the replacement more painful, but that's all. If you've ever been on the "not fired" side of a layoff, you'll understand how losing someone "vital" is almost always just a disruption, in reality. The group may even collapse, but if the work truly is non-optional, pressure will build, and it will be done. If there's any competence, nobody will miss that person in a short time, and that's a good thing, because key person risk is a bad thing.