I'm not saying they should give Dragonborn darkvision, they are super powerful already as a race-choice plus being the #1 fanboy super-popular race right now along with Tieflings. I remember when it was Drow back in the day - everybody wanted to play one.
Dragonborn are the weakest PHB race in 5e. Their breath weapon scales really badly and that plus one resistance is basically all they get for racial abilities. Plus if we did use racial ASIs they'd only be good at being paladins or hexblade warlocks, because STR + CHA is an awkward combo few classes want. Plus their breath weapon scales off CON, an attribute they get no bonuses in. So they're actually not good at using their one offensive racial ability!
It's only widely played because it's exotic and most DnD players don't really care about optimizing race.
And Larian's Dragonborn is even weaker than the PHB one, as their breath weapon can be used even less frequently.
All that said, I am still willing to wait and see. There's supposed to be items that work based on race. I'd be shocked if there weren't Dragonborn-specific items that heavily boost the breath weapon into something terrifying.
