Yes right...
A Grand Trunk Unita. Polyester Fly and fiberglass poles...
Just the tent you want for backyard camping.
FYI, a rough guide is in ascending order is 2 season tent, 3 season tent , 4 season tent, expedition tent.
That Grand Trunk is really between two and 3 season.
It isn't just about a vague similarity in design. It has to do with the type and number of pole used as well as the fabric used for the fly, as well as all the trimmings.
Nobody sane would want to use fiberglass poles in any open area let alone at high altitude.
Franco