It's just a money grab selling underperforming AAA ports on switch.
Switch is hardly competitive with modern phone chipsets with its old architecture.
Of course that’s not an argument against improving Specs, but to do that they’d probably launch a new generation.
I pretty much only play Nintendo titles or small indie games and I have never experienced any framerate issues.
Heck, even slow strategy games like XCOM2 don't run well.
let me introduce you /r/nintendo lol. I do see your point. Mid-generation upgrades have been done before and they can work. I still don't think it's necessary. Ultimately developers have to target the old hardware still, so it's not like games will change drastically, and it causes confusion for consumers. That's just my opinion of course.
It's not even with the DLCs. Korok Forest, as beautiful as it is, is commonly known as "Frame Drop Forest".
Just try something like Apex Legends and you'll see how it pretty much looks like you're seeing through an oily film. Even the DLCs for the console darling, Breath of the Wild, can't sustain smooth 30fps gameplay.
People didn't expect better hardware to get 4K. People expected better hardware to make their games playable on internal 720p screen.