Colombia coach Jose Pekerman blamed the current "confusion" about the amount of physical contact allowed defending corners for his side's penalty shoot-out defeat to England in Moscow.
Harry Kane gave England a 57th-minute lead when he converted a penalty he had earned after he was wrestled to the floor by Colombian midfielder Carlos Sanchez at a corner.
It was a call that had been coming as American referee Mark Geiger struggled to maintain control during a contest littered with shoving matches before set-pieces.
But the South Americans equalised from a corner of their own when Barcelona defender Yerry Mina thumped a header home in the 93rd minute. Extra time ebbed and flowed with England finishing strongest and then prevailing 4-3 on penalties to send Colombia home.
"We've been knocked out because we missed a penalty after a draw," Pekerman told reporters.
"The match was very rough. There were many situations (at set-pieces), as expected, everyone knew it would be like this.
"A lot was said about both sides' set-pieces and we have to defend football. It's been very uncomfortable playing this match, knowing that feeling was in the air, about refereeing decisions.
"Something is happening in football - there is a lot of confusion.
"What if a player falls because he fakes a fall, because he's being pushed by an opponent, or they're trying to get the referee to book another player? There is a lot of confusion on this matter at the moment."
He then changed the subject, and said "England have a very good team", but returned to his theme when asked about his players' regular arguments with Geiger.
"I know they weren't happy before this match because there were lots of remarks - many unfounded comments - so I don't think this is fair," he said.
"I don't think people in England or elsewhere should think about Colombian players like this. These matches are very competitive.
"England have a great aerial threat: they collide and fall in the box, there were penalties against Panama.
We need your consent to load this rte-player contentWe use rte-player to manage extra content that can set cookies on your device and collect data about your activity. Please review their details and accept them to load the content.Manage Preferences
"You have to try and stand in the shoes of these players. They are subjected to situations which shouldn't be present in football.
"These interruptions are bad, of course they are. Sometimes you have to repeat a free-kick or whatever but when there are so many fouls and interruptions that's no good. We have to find the right balance so that football can happen.
"Don't just look at Colombia's players but look at England's. I think they'll be a lot more careful in the next match because, today, it was far too obvious."
When England coach Gareth Southgate was asked about his opposite number's comments, he said: "I thought there were many, many fouls in the game and I don't think we conceded anywhere near the number of our opponents. But there we go.
"I'm proud of the discipline and I thought we kept our composure in a really difficult environment - and we deserved to win.
"We now move forward to a game that will really challenge us in a completely different way, but tonight is a special moment."