I'd say it's a stigma since companies have no problem evaluating their employees every year or even more frequently, and deciding if they should keep them or no

I'd say it's a stigma since companies have no problem evaluating their employees every year or even more frequently, and deciding if they should keep them or not. Much like the tradition of giving two weeks notice, it's something that benefits companies but not employees and managers try to make everyome scared of doing something that hurts companies