Hi Rory! There's always that risk, just like your kite ripping, trim rope snapping, or anything else going wrong. But the suits are damn tough and I don't see it happening for a while. I'm sure after a couple years, you'd also be able to see any wear, or threadding potential problems by visually inspecting the suit. The lower half of the suit is constructed with 400 denier Quadflex polyurethane-coated nylon material. Its real tough, and together with the stretch panels, fairly mobile.
Basically, unless you hit something while out, I think you're pretty safe. I'm going to take some more "in-depth" pictures of the suit. If you want, I can post them here.