Mike,
I think that AutoHome used polyester resins about 20 years ago. They are using something different now, I believe it is an isothalic resin, much more flexible, and lighter. A tent made of polyester resins would shatter on impact like a fiberglass boat does so they have to have very thick hulls.
What I'm impressed with is the absence of voids in the fiberglass of the new tents. Points to an advanced moulding system utilizing vacuum bagging. The insides are also smooth and finished which also points to something pretty advanced.
One drawback to the carbon fiber tent I have is that they are more difficult to close. The roof doesn't bend and flex, so everything has to be placed just so. Carbon fiber is lighter but much stiffer. OK the real drawback is cost, less weight costs a lot.
If you figure I paid you roughly $4000 to buy a 80 pound carbon fiber tent and the fiberglass version can be had for $2500 and is 20 pounds heavier at roughly 100 pounds. Does this mean I should be able to buy a 120 pound tent for $1000?