No! Not with the sensor bar! Never again!
I agree we want better gyro controls but nowadays that's better served with inside-out tracking.
The Wii system worked by having an IR camera on the Wii Remote track two IR emitters on the sensor bar.
The Joy-Con IR Motion Camera has both in one, a strobing IR emitter and an IR camera, all in one unit.
Rather than having to point something as archaic as a sensor bar, instead, if they added more IR camera units to each Joy-Con, it could analyse its movement relative to the room, and provide inside-out tracking. Mobile phones have also made IR+colour cameras extremely cheap and available, and using an array of those could do things like track the screen, be it in TV or Tabletop mode, rather than a dedicated sensor bar, which would make things a lot simpler.
This approach also has the advantage of not having to point at the TV to align things.
Wii U GamePad had great motion controls through the use of a magnetometer, so it could calibrate itself using the earth's magnetic field.
Combining these, say, having one camera on the bottom of each Joy-Con, and one at the top beside the shoulder button, and a magnetometer each, you could get really excellent motion controls, no sensor bar required.
Luckily for Nintendo, camera modules (including IR sensitive modules) are extremely cheap, again, thanks to mobile phones. Using those for inside-out tracking would be a great move.
Edit: also a sensor bar has to be stationary, more or less, and kind of defeats the purpose of a portable system. Inside-out tracking could be used to enhance the motion controls even in handheld mode, and work as an excellent pointer for Wii games in Tabletop mode.