Coach Fabien Galthie accused the Welsh players of sending Paul Willemse out of France’s second row in the spectacular 32-30 Six Nations victory in Paris.
Referee Luke Pearce waved the red card in the 68th minute after Willemse made eye contact with Welsh prop Wyn Jones.
Galthie disagreed with the decision.
“If you look at the Wales players you get the impression that they specialize in making sure the opponents get red cards,” he said.
“Their body language is pretty clear, I hope the referees take that into consideration. I don’t think he deserves a sanction.
“If you watch the video, there’s clearly no contact, or if there is, it’s clearly very limited. It is absolutely not voluntary.
“I think we have to share this, I don’t see why he should be sanctioned. “
Galthie made the statements during the official post-match press conference through a translator.
Wales coach Wayne Pivac has refused to be shot over an incident which has prompted Pearce and TV match manager Wayne Barnes to replay and contemplate for a long time.
“I don’t really have a comment on this,” Pivac said.
“The match officials are running the game and they get a lot of reruns.
“As you have seen, this went on for a while. They went through their process and that is what the officials are there to do. “
Wales captain Alun Wyn Jones disagreed with Galthie’s post-match feelings.
“You potentially have to be careful with the translation and I haven’t seen the quotes,” Jones said.
“I don’t think so and I’m sure there was no intention of that, but I guess it’s more of a field question for the officials. “
Wales are five points clear at the top of the Six Nations table but have played their last game and must wait to see if they are crowned champions.
For France to win the tournament, they must defeat Scotland in Paris and earn an offensive bonus point by scoring at least four tries.
This would then amount to the points difference, which currently favors Wales 61-41. If it were even after the final game, it would be decided by scored tries – where Wales currently lead with 20 to 15. for France.