Why are Nintendo Switch sales peaking much later than other Nintendo consoles?

[Pyro as Bill]

Soundwave said:

..miss every second shot...

..they have an established reputation for making major mistakes repeatedly after success...

Can you name all these major post-success mistakes that Nintendo has a reputation for because I only count WiiU?

3DS can't be a major mistake because it survived the onslaught of smartphones while the supposed King of Videogames joined Nintendo's ex-rivals in the handheld graveyard.

Edit-I count the Virtual Boy as a failed experiment like PSVR, not a serious successor