Of course, this is a big opportunity for Liverpool to win UCL if they are determined and stay focused. They are still keeping up with their good performance, so it should be a good advantage for them because the big boys are not too strong this season. However, I think Barcelona can be a hinderance to them from achieving the trophy this season, because they are not as weak as City, Real Madrid and Bayern.
I even think that in this season Liverpool could get three big trophies at once if Liverpool's consistency is still stable and not disturbed by any conditions. But when this leads to the Champions League, of course the challenges that Liverpool must face become more difficult even though Liverpool's own strength is still quite a lot to make them a strong candidate to win the trophy in the Champions League this season. Barcelona can indeed be a serious barrier for Liverpool, but Real Madrid can also be an opponent that every team must be wary of because Madrid often makes extraordinary comebacks in the Champions League even though Madrid is currently in a less good position in the standings.