True, but doesn't mean that the Bundesliga wouldn't need long term competition among the teams in the league itself. Europa League and Champions League is all good, but as you can tell yourself it gets boring when one team dominates so hard. Dortmund wasted it last year, but even if they won it, it is still no competition. Bayern needs competition!
Honestly, Bayern Munich in the previous seasons could not be compared with the actual season whether in the quality of the players nor in coaches tactics.
Lewandowski departure among others affected a lot Bayern Munich and even Harry Kane arrival failed to fully replace him.
In addition to that, Xabi Alonso drove Bayer Leverkusen very well and the title was very much merited by this team.
I think Bayern Munich don't really have much drop in quality of the squad. The departure of Lewandowski has been well-replaced by Harry Kane, He has done his job very well to ensure their Bayern's productivity. His goal-scoring ability and statistics seems quite similar to what Lewandowski produced during his time at Bayern.
The only aspect that Bayern experiencing a quality drop is the coach. Tuchel may be better than Julian Nagelsmann, but he is not better than some previous Bayern's manager. The remarkable campaign of Leverkusen should taken into account to judge this season's Bayern, because Leverkusen being excellence with their unbeaten record put more pressure for Bayern, and made Bayern having almost impossible to match their run of the season.
Point is that Leverkusen was on a different level. I have no idea whether they will be able to repeat that, but fact is that this performance was so out of this world that I can't think of a situation where they will repeat it. If it is the case, I am the first person to salut!