Your points are all good. There is more to the story that now seems pertinent.
He had bad luck with this lathe from git-go. The bed was broken when he unpacked. It was shipped from the factory broken as attested to by the anti-rust gunk was on the break.
It wouldn't run properly at all. He was sent a new electronic box by Griz which he installed. The head weights about 200 pounds. Shipping back would be problematic. So, y'all are probably right, the elec whizzy thingys are probably screwed up. At this point, I don't know if further messing around would void the warranty. He does need to talk to the Grizzly tech guys again. I feel involved because he called me before making the purchase and I told him how happy I have been with all my Grizzly tools, including my G0632 lathe.
"Folks is funny critters."
Think for yourselves and let others enjoy the privilege to do so, too. ~Voltaire