Nothing wrong with having reverse. My wife owns 2 TMaxx's and she loves the reverse even though she may have only used it once.
I disconnected it to make her get used to not having it. I am getting her a Hyper 7 for rally cross. We race regularly.....
Now with touring cars i wish reverse was allowed in racing.... There is a place where reverse is needed.... when someone knocks you into the wall etc etc -- be nice not to wait on the sleepy turn marshal... hahahahahha