3 quick problems

"Climb into the trunk?" I'm not THAT small LOL

One one car I needed to get into I pulled the seat, taped all the 3/8 drive extensions I could find together, and reached straight back through the X braces and unscrewed the trunk latch bolts. "Pretty soon" the latch will fall off
I pushed the electric trunk release button LOL
Seriously though, I remember doing the same. I couldn't get past the X brace either.
I'll add that the fiber insulator board behind the seat back will be brittle and easily broken.