They took advantage of the fact the zipper was on the pants. Thats just pie in the sky stuff to think they specifically made cricket pants with a specially designed zipper so they can conduct ball tampering. Show me an article of them admitting to these specially made pants and I'll acknowledge your point.And having specially made cricket whites with a zipper and then using the zipper on the ball isn't an organised plan?
Im sure I could dig up my old cricket whites and find zippers on those pants.