The trampling check is within the IC2 API - have you tried deleting the ic2 folder inside all of your non-IC2 mod jars?
only jar-mods right? (jars in the mods folder...)
did this today, tested it with sugarcane,melon and pumpkin, but its still happening, except sugarcane-crops (ive walked now over arount 20 of each for about 15mins tough) i can even run above sugarcanes, nothing happens to them, but melons and pumpkins revert back to dirt.
im still thinking it is forge, because it happened with forge and ic2 only, too, and ppl with higher builds dont have it. but thats just my opinion, im not a dev nor did i touch any code at all.
edit:
gonna try out forge 171 today or tomorrow, with only nei and ic2, if i find some free time tough
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(idiotic question since im not sure: do mods that need 3.3.8.152 forge work with higher builds?)