Technically, it was a second yellow.
by NDBass (2018-12-05 10:52:44)

In reply to: Remember that time Raheem Sterling got a red card for  posted by tex29

And he received that yellow because jumping into the crowd is a yellow card offense.

If there is a rule that a manager that does what Klopp did should've been sent to the stands, then he should've also received a match ban. I haven't read enough detail to know whether or not there is, but I'd be surprised if the FA only issued a fine if such a rule exists.

I hardly think this rises to the level of stupidity and/or corruption. The rule that earned Sterling the second yellow is in place for safety of players and fans. A Klopp hug can only inflict so much damage.