What do you consider as premium? The switch is a toy for children. So it should be robust, reliable and cheap enough. The switch does serve this very well IMHO.
Additionally, Apple is bigger, selling significant more units of their devices, which are also more expensive, while having a better standing in the industry. Nintendo on the other side was taking a gamble on whether the switch would even sell good enough to survive. So price-calculation for both companies is quite different, with apple having more money to invest in premium than nintendo.
Maybe the rumored switch pro some day will up nintendos premium-game?
It is hardly reliable, given how great of a percentage of people have drift issues, as well as obvious oversights in the joycon build: overly long flat cables that have to be bent 180deg and end up breaking, use of a plastic that is clearly not meant for continuous direct handling since it quickly stains with sweat/skin oiliness.
As well as the dock being literally too tight, causing the screen to scratch due to the support beams.
I don't even mind it not feeling "premium" whatever that means, but those are reasonably basic things to consider in material choice. I don't mind that when the joycon is attached, I can sort of flex the connection bar, or that the screen plastic itself is very soft to be scratched, as long as the hardware doesn't essentially try to kill itself.
Additionally, Apple is bigger, selling significant more units of their devices, which are also more expensive, while having a better standing in the industry. Nintendo on the other side was taking a gamble on whether the switch would even sell good enough to survive. So price-calculation for both companies is quite different, with apple having more money to invest in premium than nintendo.
Maybe the rumored switch pro some day will up nintendos premium-game?