He's just talking about first party stuff I'd say, kinda like how most Nintendo games on the Switch are locked 60fps but then you have the 3rd party titles like Doom/Wolfenstein and such happily coming in at 30fps. When it comes to game development, the way the game runs is always down to the developer.
From what I know there are first party games on Switch that are 30fps.
like Zelda BotW
duduspace11 "Well, since we are estimating costs, Pokemon Red/Blue did cost Nintendo about $50m to make back in 1996"
Mr Puggsly: "Hehe, I said good profit. You said big profit. Frankly, not losing money is what I meant by good. Don't get hung up on semantics"