Problem: I don't like fixing things in SX that aren't broken, but the tough blocks are broken, and have broken several riders over the years. If a footpeg gets within a foot of the damned things, the thin plastic cover reaches out and latches on.
Solution: Print the sponsor logos on thin - but rigid - plastic sheet instead of the plastic bag type material they currently use. Something like 2mm thick should still be malleable enough to fold when a rider lands on it (and not injure the rider), but stiff enough that a footpeg will slide along it instead of immediately pulling the block onto the track and/or the rider to the ground (or flying through the air as we saw with Peick and Ferrandis this weekend).
Preach this Matthes; they heard you on the nets, even if they call them "catch fences".