I think it'll be up to the developer of the game to set World of Goo's price, not Nintendo. I've not played it but heard it's great.
It's cool to see strong indie support on Switch. Wii U was fairly indie friendly too and it ended up getting a few exclusive gems as a result.
Yeah, the game itself is great and I have it on the iPad already. I'm just commenting that it's currently selling for £5 on apple's store and £3 on Google's.