While I think tactics and selection had an impact, I'd suggest the performance had more to do with individual performance levels. Key members simply didn't show. Salah was invisible, and the odd time he manifested in the flesh he looked and acted like a member of the walking dead. Shaqueri and Firmino little better, even the great VvD was a shadow of his normal self. Even Alisson was making me nervous. On top of all that Klopp's substitutions were mind boggling in their banality!
I'd suggest that all future breaks away be held in Alaska or Siberia, or alternatively Outer Mongolia might suffice.