I agree. Klopp got slaughtered because even in Germany they only do that after a win and we did it after a draw, but it worked.
They can do it any time in Germany, that's the whole point really, it isn't to celebrate the results so much, it is to thank the fans. Many times teams in Germany will do this after losses as well, especially away from home, they will go and stand right in front of the fans as a team, not just a half hearted clap from the half way line.
Sometimes they do it when the fans are not happy as well, and will take the abuse.
Kloppo got slaughtered for it because people didn't understand the concept, and where not willing to understand it after he explained it either.