It's more likely that some guys are good at deadlifting in spite of doing touch and go reps. You have guys like Matt Gary who take it to the other extreme and train deadlifts for singles only, him and his lifters get results as well. I can't think of a good reason for touch and go deadlifts aside from time under tension. What about touch and go deficit deadlifts? Even worse with a deadlift bar. If anything it would make more sense to pull from a deficit and not touch the floor between reps if you want more time under tension.
In my own experience, I used to do touch and go deadlifts but I found that I got weak off the floor - anything I could pull to my knees I could get at least 3 reps but add 30-40 lbs. and it wasn't going anywhere. I started pausing every rep and made more progress that way, and I started listening to guys like Mike Tuchscherer who say to never do t&g deadlifts.
And since you mention touch and go bench, I'm actually equally strong with a 1 sec. pause so it's no overload for me. I still train both though, from what I understand t&g reps will help you to use the stretch reflex more when you do paused bench.
I'm interested to hear some arguments in favor of touch and go deadlifts, if anyone has one then I would be more than glad to hear it.
lift206 - no hard feelings, I see some people on this forum get their feelings hurt anytime someone disagrees with them.