Nope- If the tail dolly was on, glider is still flyable. Most likely speculation on may part-#1 rule broken here which is FLY THE AIRPLANE.
I have seen a few tail dolly incidents or the years, and in every case, the pilot had to be told that the tail dolly was still on.
Other bad rule broken- NO unrestrained people in the glider- ever.
Terribly sad
UH

Photos do clearly show the tail dolly on. That can't help a cg, though
as Hank says unlikely to move it too far aft unless already at the
back limit. It does suggest things getting hurried in the preflight.

Photos also show both spoilers full open. That could happen in a crash
of course, but might also be indicative of things going wrong. There
was a spoler-open crash earlier this year where the pilots
interepreted the rudder waggle as a wing rock (NTSB). This is a very
dangerous combination. If you don't know the spoilers are open, you
won't know to use the much lower-nose pitch attitude that spoilers
require. You're at 200 feet, not aware your spoilers are open, and in
a pitch attitude that will lead quickly to loss of airspeed. I've been
having towplanes waggle rudders at BFR rides for a while, quite a few
of them release.

And I have to agree with Hank. They let you carry kids on airliners,
but this ain't an airliner -- there's no stick in seat 37E either.
Small children won't get that much out of a glider ride that can't
wait until they can sit alone. I don't let rides even bring video
cameras any more. They won't produce good footage, they'll just get
sick looking through the camera, and it can drop in uncomfortable
places.

John Cochrane