I agree with what Klopp said about this game. It doesn't matter how they say sorry about this game the point will not return to Liverpool anymore.
We know even sometimes the VAR can't even help the referee to make the good decisions and avoid making mistakes. Maybe Klopp thinks this makd Liverpool lose the games otherwise they had much higher chances in the game against Tottenham.
The apology or acknowledgment by PGMOL is needless because Liverpool will not get a point or a match replay. The decision was taken just fast and this raised suspicion that there might be a kind of conspiracy against Liverpool. This is not the first time they are apologizing but the harm has already been done and there is no remedy to it. Even the red card against Curtis Jones. Liverpool would have gotten at least a draw or even a win in that game. The goal would have served as a motivation to the team. Everyone expected that VAR would reduce officiating errors but it is currently making more. Apologies are unnecessary, what is needed is an improvement and an end to such costly mistakes.