Manchester United beating Bayern Munich in Germany is not a totally impossible in the world of football. Why th person made such a statement is that the current form of Manchester United is not something that is encouraging. If Manchester United should be on their prime, there is no club they cannot beat, be it home or away. In the other hand Bayern Munich is not even that club we used to know some seasons ago. They are strategically trying to come back to their old form, which they have not attend to currently.
Some seasons ago up until later part of last season, Bayern Munich had a super crazy form, which whomsoever they meet they tend to humiliate, their game then are usually characterized with a lot of goals, on a bad day, they score as much as 3 while on a good day they can score as much as 7 goals and above, nevertheless regardless of Manchester united poor form at the moment they are not that team that could suffer such humiliation from Munich.
Manchester united did put up a spectacular performance as compared to what was expected of them due to their recent form, from the first half of the game up on to the second half they were seen putting up equal strength with Munich, statistically Munich had a little above united with possession of the game, same applied to other of the match statistics, they had just slight difference.
Both team I can say we're at their best but then Bayern showed some level of superiority because they were at home which was definitely an advantage, consequently it's very possible Manchester united could have secured a win but then their form at the moment wouldn't allow the against a team as Munich. United can aswell do better in their next UCL game if they can step up their form a little above they way they played against Munich.