Yes, this is an unusual season and there is a possibility that we will see some unexpected champions in the European championships - for example Roma or Udinese in Italy
But I doubt that this is possible in the Bundesliga. No matter how bad Bayern play, all competitors will play even worse and less consistently. In some segments they can show good results, but in general they are untenable.We can also see a different situation in the Bundesliga and right now Union Berlin is making a progress, but I think we are still starting and in the early stage of the season so there could be a shift of pace between every team, but comparing the team play right now we can not see an elaborate consistency right now because some teams are just adjusting with the said changes,
There are reasons for and against your argument. Bayern scored 19 goals in 7 games, which is the top rank in the Bundesliga. I don't know whether it is just a striker who is missing right now. They aren't create enough when they come close to the box. Now they have so many agile players that it is shocking how they lack ideas to crack the opponents' defense.
When you say that Bayern has no problem with their defense, I am not so sure about that. It is not a bad defense, but they are not as solid as they used to be in some of the past seasons. The opponents know that Bayern is making mistakes at times and if you then defend solidly against Bayern and have that one lucky shot (like Augsburg), you can take it home against them.
Bayern gets under pressure when they don't score early. They need to fix that and not lose patience when a game has 90 minutes.
The man Lewandowski is sure a tough guy to not be pressured by every game in the Bundesliga but in my opinion, Lewandowski have left a big hole for the team, I really think that Nagelsmann's strategy was all pertaining for Lewandowski, and not compatible with the previous team now, that is why there are so many mistakes and Sadio Mane is still coping up to all of that change because he has a different position now than he usually have on his previous team there is a lot of pressure for each player for the Bayern Munich, that surely see a big mistakes with their play,