It's important to feel that your supporters are pushing for you and are waiting for you to score a fantastic goal; not to mention they are good also if you lose because they won't let you down (unless your team is utter crap). Nope, I am sorry but I disagree completely with what you said.
Agree with you there, think back to the CL semi final in 2019, Liverpool were 3-0 down from the 1st leg. Do you think it would have been possible to beat Barcelona 4-0 in the 2nd leg in an empty stadium with no Anfield atmosphere?
No chance!