This is purely a guess but we have discovered that the full travel on the steer axle is limited to the maximum extension of the shocks. Folks were experiencing snapping off the eyelets on shocks and so Jon went and removed some and discovered that with the shocks off the axle had even greater travel.

If this is the case on the tag as well, lifting it would eliminate any unnecessary stress on the tag shocks I suppose it would be a safer way to lift too..

I have an older bus and am in no position to speak for Prevo but I can tell you if I ever had a reason to lift the tag and continue to a destination for whatever reason, I would. I personally have not had to but I know others have.