Yep, 3DS was the first and only time they ever did themes. Just doesn't make sense why they'd make a market off of it for that console, but not the Switch. I'd be willing to throw cash for themes, just as I did for the 3DS.
And yeah, they've never really done anything past themes and NSO (though they're obviously still figuring that out), to make their consoles catch up with the times. I know they like being innovative with their tech, but they really need to add similar features that Sony and Microsoft has been doing for years.
Definitely a case of being behind the times and just being to overprotective with their stuff.
And yeah, if they weren't so overprotective and behind, homebrew wouldn't be as popular as it is. The consumers just prove how much more the consoles could provide.
Also, love your signature btw. Good to see another fellow SOG on here