I like the IDEA of the old saves, in that there are these specific things in the world that can cause harm, but I don't like that list.If we’re going that route I think we should remove ability mods from saves as well. Leaving them in retains most of the issues with some scores being far more important than others.
Of course the question then becomes do we go with three saves or five?
What if saves were based on the damage types instead, with effects expanded beyond simple damage. "Make a save vs necrotic" or whatever.

