Oh crap, I gotta apologize as I completely misunderstood the initial request for what’s pretty much a rune override option.
On the rune slot swap idea, sure I don’t see why it shouldn’t be an option. Pretty nifty QoL for sure!
Regarding the override though, I think restricting said feature to endgame modes would encourage players to challenge themselves for the ultimate reward, a way to further change our build.
Would help alleviate “aimless” grinding with the hope of that one ultra rare item finally drops for you. I thought of that because I don’t see focused gear drops for gear other than uniques (bosses/minibosses).
And yeah, it’s a pretty substantial change, one I am now starting to think I would be fine without really. Respec is probably enough as it is and further than that would ultimately depend from the game’s full scope and included activities.