If Klopp is at Liverpool for 22 years and is having an average season like this, coupled with getting some extremely terrible away form and big match performances over his last few seasons he would be judged as critically as well.
The fact that Liverpool shows more ambitions in the transfer market, tries some different things to be successful lets them off a little in the media eyes. Big matches counts for a lot as well and when you see some of their performances over the past 3 years under Klopp it's not tough to understand why it is positive at their end and negative at our end.
Anyway, I thought the original point is that after buying Van Djik and having the best player in the league they are not impressive? That was what I was perplex about, given that they pretty much played fringe players over their last 8 matches that 1 point less this season is a crap argument.