Managers are too much focused on new thing, because it is much easier to see impact on new thing.
Quantifying impact on support is much difficult and it seems big tech mostly gave up on trying to quantify it, hence people get praise when they are incident commanders, but when you go above and beyond to avoid it from happening at all, you are just doing labor work
Which is, I think, exactly the point that OP is trying to make. Incentives are defined by managers, after all.