If you pick a frame not entirely suited for a mission or enemy type, you should accept that it's not an optimal choice. You're making the choice to pick that thing, which is never wrong, but don't complain when the game works exactly the way it's supposed to and you have some difficulties. And now that I think about it, the only frame that really comes to mind that stuggles cause of it's damage type is Ember, since she's supposed to be a DPS frame. Every other DPS frame either already has a suitable damage type, of has stats high enough for it to not matter. It wouldn't matter for most frames as their problems stem from mechanical issues or just how their kit is set up, like Nidus being less suited for shorter missions, or frames like Vauban or Nyx where it's just issues with their kit. There's very few frames where changing their damage type would legitimately help them, and not just shoot them into OP-ness.
It would seem logical, which is why DE tried that with Chroma. And we have very vocally said we don't like it. It's better now that it's decided by emissives rather than energy, but that still affects fashion.