If we were wanting to be better defensively though - why wouldn't we just play the same way we did at Anfield? Where we were ALOT better defensively and literally rendered them to a lucky deflected goal and a last minute set piece to score against us?
353 is an offensive tactic. You tend to push your wing backs up, you have 3 attackers who tend to float around with the idea of one either being a focal point or dropping a bit deeper to create, three at the back to cover their wing backs and remain solid with two central midfielders to progress. And it just wasn't a game for that.
Instead, we had two wing backs who RARELY got forward, let alone kept width. We had two midfielders who, to their credit, were our best players on the night, but outnumbered by Liverpools 3 and couldn't progress it forward or do much when they had the ball due to lack of movement and no outlets either side of them. We had Bergwijn drifting around in a formation not suited for him and of course Kane got injured so pretty much made us ineffective even more.