If Nintendo really cares about 3rd parties they'd subsidise these costs
Switch is the machine for indie and Japanese games, but the latest large Western titles aren't going to be on there.
It'll be interesting to see if and how the Switch is effected once RDR2/GTA6 hits the shelves.
But really, games with continuous honking big updates just can't function on the Switch (And Nintendo cap update sizes, iirc) if one single SD card can't manage all of it. I can't see GTA Online working for instance.