The candle video shows the classic battle between pan and dolly when looking sideways. Panning either takes away from, or adds to the dolly movement. Just a little bit of pan adds a large left-right movement along the dolly axis. The result is a kind of herky-jerky motion that never looks natural. And being close-in makes it worse. The classic visual efx solution is to place the camera lens on the head so the rotation point of the pan axis is somewhere inside the lens, or to use a motion control system that knows now to solve the geometry of a swinging pan axis so that track and pan would work together as a single linear axis.
But even as is you would get a much more natural effect if you had something as simple as a dolly axis motor, or even just a good dolly grip who could push at a consistent rate. Then the pan & tilt operator could concentrate on a nice smooth pan, which is challenge enough for one person. The trick on the pan would be to keep it constantly moving with very slow accelerations and decelerations. The pan would still add in to the dolly move, but only as slight variations in speed rather than sudden lurches. One trick I've seen table top shooters use is to tie a long bungee cord to the dolly, say maybe a 20 feet cord for a 2 or 3 foot move, with slight tension on the cord at the loosest position. Adds the same sort of damping to the track as a fluid head does to the pan/tilt. Of course, don't forget and release the dolly, which can be very exciting.