I already commented on that video.
The arm wont get lost or misaligned when the bolt that holds it on has been properly tightened, and you never remove it to begin with. I suppose, depending on the tolerances in milling of individual parts and the alignment of the bolt hole, the arm might be so tight on the axle that it's hard to slot the axle out without the arm turning and clamping even harder, but that shouldn't be a problem after a few dozen miles.
I've removed my back wheel many times, for swapping out various tires, and all it takes is to have the bike upside down (don't crush the levers or display!), remove the quick release nuts, give the wheel a few gentle smacks to knock it loose from the dropouts, and proceed as usual. Have a wrench ready when dropping the wheel back in, so you can twist the axle into the slots, as it tends to spin one way from chain contact, but wont spin the other way with just a finger grip.
Removing the torque arm should be plan B, not normal procedure.