I may have gotten carried away, but most on here do not really use their TD trailers as expedition units. Most look for base camps it seems. Some of the box trailer guys drag theirs places, that most would not drag a TD. Smaller footprint makes it easier. I have seen a couple of the LG's on trails around MOAB. How long a tear drop survives depends on where you drag it, how you drag it and will it squeeze through.
I think, personal opinion, is that you need to be able to move the trailer around physically by hand, damage occurs being outside the wheel track of the tow vehicle. Meaning you can disconnect, lift the tongue and make adjustments so you pull through close quarters. Now this situation very seldom happens, for most how and where they use theirs, it would never happen. I have had to disconnect a couple of times, use my winch and pullies to pull the trailer to where it needed to be to clear a rock or tree. Not a fun deal, but if the tongue is extremely heavy, it becomes nearly impossible. Damage occurs. And it always happens when I decide to run an unknown trail, that looks too interesting to pass up. Also at the end of a narrow trail that dead ends due to a fallen tree or rock slide, it beats trying to back out.
