i just struggled to prove that my tubolight did anything. I've got the dreaded pin hole punction, right near the bead, on the rear in all formats( without inserts,with the tubolight even with the tannus). If your pressure is too low and you ride rocks you can still flat. My view of the insert was always that it might not save you from that puncture but once you have punctured you are probably going to smash another rock at speed with low tire pressure before you notice it / can stop.... for me the insert is there to save you arse from smashing your rim into bits on that NEXT hit. I can't say the tubolight pool noodle will do anything. Also with something like a tannus you can ride it home, can't do that with a tubolight.
TL;DR I don't think the tubolight accomplishes my top ask of a tire insert