The replay evidence was widely perceived to have provided correct decisions.
Watford hoped to raise £30m by selling Deeney but as West Brom are finding out themselves with Jonny Evans, 30, ageing players and contracts with less than two seasons remaining, diminish transfer values. Is it cool in January to have delays when it's cold, especially for the players?
West Bromwich Albion are the first side to score three first-half goals at Anfield since Real Madrid in October 2014.
The Terriers are going through their own sticky spell with just one win in the last eight but the pressure to win is already greater on Liverpool.
'What I heard was that the actual extra-time in the first half should have been 10 minutes and it was only four minutes, ' Klopp replied when asked about what needs improving with VAR.
Roberto Firmino put Liverpool ahead in the fifth minute after a mix-up, only for Rodriguez to hit back with two well-taken goals.
Three major incidents in the first half alone required the intervention of VAR - including the first time a match referee has used a pitchside television replay. We didn't know what the decision was, why it was being stopped.
On the advice of VAR, referee Craig Pawson correctly disallowed a West Brom goal, correctly awarded a Liverpool penalty when Mohamed Salah was fouled and correctly judged that the visitors' third goal should stand despite offside appeals.
Liverpool's Mo Salah thought he had been brought down by Jake Livermore inside the box and Pawson again turned to VAR for assistance. At least five West Brom players were offside.
"I'm sure he would have whistled if he saw it, would've seen it exactly how it was, but he didn't".
"It was just weird". It's normal at the beginning that it takes a little longer.
VAR, being trialed in English cup competitions this season, then took center stage.
Klopp, whose side lost the match 3-2, accepted broadcasters invest a huge amount of money into the sport but the German insisted that they should not be allowed to dictate playing conditions.