I don't see why technology should interfere with linesman baiting. It's a tradition. I don't know if you noticed (I bet you did) but the 3 officials at the Barnsley game consisted of two fit and enthusiastic individuals who thrilled the crowd with their pre-match warm up plus another bloke. I'm not saying he was going through the motions with the various stretches and so on but I did notice a small gaggle of First Aiders who gradually gathered nearby, obviously sensing they might be needed at any moment.