It's a theory but far fetched, we have documented proof he played on it with that article. I get band members covering up things to protect the band's secrets, hell I get producers covering things up, but mixers and engineers? Sorry, it's Tico on the track, you can see the waveforms they used.

I often wonder what would they have sounded like had Patrick Leonard produced the next band album as was the original plan. Tico's drum sound in Wanted (TLFR) was massive. Obviously the whole thing was a Kashmir homage but still.