Scotland coach Vern Cotter accused Welsh opponents of “cynicism” by committing deliberate infringements which ought to have brought yellow cards as well as penalties down the home straight of the 26-23 defeat.
“There were three penalties inside their “22” in the last ten minutes, I thought some of these might have been cynical,” said the Kiwi.
Asked if he will comment on referee Glen Jackson’s performance through official channels, the coach made it clear the report will not be complimentary.
“There is communication. We will send something through that will help them,” he said.
Cotter’s angst extended beyond the official’s refusal to allow a restart after his side had converted a try with four seconds remaining. He felt they could have had another two tries – by Greig Laidlaw and his replacement, Sam Hidalgo-Clyne.
“Quickly analysing the game, they could have had a look at Greig’s ‘try’ at the end of the first half [and] Sam Hidalgo-Clyne when he was on the ground. They could have looked at that as well.
“There are lots of things we don’t have control of and I don’t want to lose a lot of energy talking about because it is not going to change the result. What we do next is important and this game illustrated areas we need to improve.
“I’m sure somebody will look at the refereeing display. We have things to sort out and I’m sure they do as well. It’s done now. We will get better.”
Welsh coach Warren Gatland believes Finn Russell could have been sent off for up-ending opposite number, Dan Biggar.
“My initial reaction was that the first card was red,” said Gatland, who also took a sideswipe at his counterpart claiming that Wales gave the impression they just had to turn up to win.
Maintaining this had provided motivation, Gatland said: “Saying we treated this as just another day in the office ... the way the players prepared and seeing them in the changing room beforehand we knew it meant a lot to them.”
While many Scots thought Wales had sparked a brawl in order to waste time, Gatland said: “Alun-Wyn [Jones] is adamant it wasn’t a try and he was under the ball. That was what kicked off the fracas, but Scotland didn’t give in.
“This was the toughest Scotland team we have faced for a number of years.
“(But) they didn’t play as much rugby as we thought. They played it tight.”