It would depend on the bike. A ten mile ride to get the bike to full operating temperature is a good thing to do for many bikes.
Does your bike have an Oil Cooler?
Personally I would rather they rode it than start it and let it sit there idling. I know and ride with the techs at several dealers of which I am referencing. If they were unknown to me I might ask why it was necessary?
“Watch out for everything bigger than you, they have the "right of weight"