I give a very small chance for Bayern Munich to surprise everyone by making a comeback from this bad situation for themselves. Because Manchester City seem very determined to make it to the title this season and this 3-0 advantage should be very helpful for them to qualify for the semi-finals as well. As long as they keep the same discipline in their game then there shouldn't be any problem.
I agree with you. Although it is not impossible for Bayern Munich to come back, but it seems very small chance. Man City already leads with 3 goals, and they look very dominant in the previous match. So, I assume Man City also will dominate the match in 2nd Leg although it will be in Bayern home. Man City seems better in midfield and attacking line, so they can make more shoot attempts. While Bayern only won the ball possession, their attackers look quite weak and their midfielders can give enough assists.