Hull KR head coach Willie Peters told BBC Radio Humberside:
“I’m very disappointed. We need to look at what happened. I need to be accountable, players need to be accountable, staff need to be accountable.
“I’m not bothered about the scoreboard, I’m bothered about performance. That was a really, really poor performance.
“We got back at half-time to 6-6, we had an opportunity to put pressure on in the second half, but we didn’t do that. It was our doing.
“We had ill discipline, yellow cards. It hurts. The refereeing decisions are not my concern – my concern is my team and that performance.”
Hull KR: Hampshire, Davies, Hiku, Gildart, Burgess, Lewis, May, Sue, Lawton, Whitbread, Martin, Batchelor, Minchella
Interchanges: Litten, Broadbent, Luckley, Dezaria
Wakefield: Rourke, Walsmsley, Scott, Tate, Johnstone, Trueman, Smoothy, McMeeken, Smith, Rodwell, Storton, Vagana, Tevaga
Interchanges: Pitts, Hamlin-Uele, Faatili, Lawford
Referee: Chris Kendall.