The Lions were hot on the attack, but there was no team warning, just a straight yellow from Peyper, and the home side capitalised first with the easy penalty kick and then a converted try while Barrett was off.
Modern rugby at Super Rugby and test level is an incredibly difficult game to referee given the pace and intensity of it, and a set of neutral officials would immediately remove the perception of partiality.
The Hurricanes made some poor errors in letting slip a 22-3 lead but Peyper and his assistants Rasta Rasivhenge, Marius van der Westhuizen and TMO Marius Jonker were involved in some big decisions which went against the visitors.
The grounding of two tries was questioned by skipper Dane Coles, with assistant referee Rasivhenge in no doubt about the second - even telling Peyper not to go to the TMO when a more considered approach might have been appropriate.
Viewed in isolation, the issue might not appear significant. But the performance of the South African match officials in the Stormers v Blues match this season threatened to undermine the integrity of the competition all by itself.
That was the match in which several dubious calls were made against the Blues by referee Jaco van Heerden, TV match official Shaun Veldsman and the assistant refs Marius van der Westhuizen and Cwengile Jadezweni, the worst of which was deciding Shaun Treeby's swinging arm to the jaw of Piers Francis, which knocked the Blues No10 unconscious, was not a red card offence.
Van der Westhuizen had the honour of officiating on the sidelines at Ellis Park this weekend.
A Gardner appointment as referee for next weekend would be the first step for Sanzaar, but they must get the rest of his team right too for the sake of the competition. The final has the best two teams in it, now we need the best officials.