Right, the protection against the constructive is that you can keep benefits owed on direct terminations. That is, my main concern before was on the last sente

Right, the protection against the constructive is that you can keep benefits owed on direct terminations. That is, my main concern before was on the last sentence you have here. Many negotiated benefits are on getting fired. If they can instead basically force you out so that you don't get those benefits, that is pretty terrible. Note that this still allows you to take pay cuts and such. Those are not directly illegal. Nor do I think they should be.