GreenWater
They were cheaper options at the time of their release. Nintendo games from the past have only increased in price because of the popularity of the brand that attracts collectors. You are correct about the long-term expenses being cheaper overall but the average person only looks at the price for the console itself and that is about as far as their long-term thinking goes. Fps does not matter as much to the more casual gamer that Nintendo attracts.
The perceived cheapness is what gives Nintendo the advantage.
Nintendo has always had competition with superior hardware in the handheld department. The Sega Nomad, WonderSwan, and Playstation Vita were all good examples of that. Nintendo products being much cheaper are always what keeps them ahead with handheld consoles.
This game was very popular in Taiwan but I do not think it deserves the reward. High sales because of a popular IP should not determine whether a game wins an award. Was the Steam Deck version better than the other versions? My friends who played it complained of glitches and boring gameplay.