The switch does struggle running higher resolution graphics; I can emulate BotW/TotK to look much better on PC simply due to having access to a stronger GPU.
4k gaming on PCs is still hard to accomplish without a high end machine, so I still think we will be seeing improvements with generations; at least until 4k gaming can be done on mid level hardware.
As someone who takes kids to speech therapists, it is not the same. Casual conversation is critical to help correct speech impediments, that practice with a therapist alone would not give.