@Silkk there were a couple times they tagged together when rock got more chants than austin. I think one of them was a tag match vs taker and hhh. or maybe the six man tag with rock, austin, and vince.
also, if you watch anything from sept 98 until nov 98 his reactions were right there with austins. Cornette even brings it up to austin on an episode of heat.
now merchandise wise, no one was touching austin then. but reaction wise, rock was there with him plenty of times.
EDIT: to answer the initial question. it didn't do Rock any favors. it would have been fine if it happened off air.