100% for me, I have yet to ever plug my launch Nintendo Switch into the Dock.
That said, the combination is perfect, and is a great driver for selling Nintendo hardware. I am not fully comfortable that they don't have that "Second Pillar" (they had the capacity to do business on two fronts in the past, which was good for Nintendo - especially if one side slumped - but also it was good for me as a gamer because it allowed the smaller, off-brand game ideas like Metroid Prime Pinball or Kirby Tilt n Tumble or even the whole Golden Sun franchise to exist.) However, Switch is a great platform, and even though I've never plugged mine into the TV, I'm glad that possibility is there.
Mobile hardware does hold Switch back a bit, but not as much as people claim (it's full of the best indies and has a few impressive ports of then-current-gen games, although Switch never got the mainline Call of Dutys or Assassin's Creed or other blockbusters; a Switch Pro wouldn't necessarily fix that problem and next-gen will continue to move on without Switch, but streaming is slowly being considered as a viable option when necessary.) A future Switch proper follow-up with high-speed IO and a chipset capable of Lumen/Nanite support (in some capacity) and bigger cartridges/storage would be competitive even if it's nowhere near PS5/SX capabilities, but who knows when that'll happen...