Arteta: The red card decision completely changed the game, the referee was inconsistent throughout the game

In the third round of the Premier League, Arsenal tied Brighton 1-1 at home. Gunners coach Arteta said in an interview with TNT Sports after the game that the referee's red card penalty completely changed the game, and believed that the referee's penalty standards throughout the game were inconsistent.

We started very well and took a 1-0 lead. We also started well in the second half, but the penalty that happened afterwards completely changed the game.

No, it was the same as usual.

If (the penalty) was consistent throughout the game, there would be no problem, but it was not the case. The problem is inconsistency.