My problem with gyro aiming is that my hands aren't particularly steady and I hate the constant screen wobble. Wiimote aiming gives you a deadzone in the centre of the screen - the screen view only moving if you aim outside of that. With gyro, every movement seems to result in the whole view moving to match.
But also, I play switch handheld almost exclusively, and changing the angle of the actual screen you are looking at is just rubbish. But obviously wiimote pointing wouldn't work handheld either!