To be fair they did lose a game to Atalanta quite recently, so it is not their most recent loss, it's just Bundesliga one, which is of course still insane. They went a whole season without a single loss, that is amazing whenever it happens, in any league that happens.
Even Bayern when they dominated didn't do it if I remember right, PSG doesn't, City doesn't, to be fair nobody goes 50+ unbeaten games in a row, that just doesn't happen and they did it. In this season I didn't expected them to do the same, it would have been quite difficult and because of that I did expected them to have this issue, and that still doesn't mean that they are going to end up losing anything, they can still win the title even wit ha few losses here and there.
The fact that some people are expecting Leverkusen to play at the same level as they did last season is very embarrassing. Every team they faced last season already knew how to face Xabi Alonso's method, so they will do everything in their power to defeat them this season. This season will be very different from the previous season because every team has brought in better squads to compete for the championship. I won't be surprised if any unknown team wins the league as Leverkusen did the previous season.
However, Leverkusen's home defeat against Leipzig was very strange. Leverkusen led the first half with two goals, and to be honest, I did not expect Leipzig to make such a comeback against them, but that is football, and anything can happen. This is Xabi Alonso's first Bundesliga defeat, but I do not think they will win the league this season.
Come on, a team spent a season without losing a game except one, and you think they can do it all over again, no right? Be realistic man. Bayer Leverkusen had a great season, fair play to them, but let's just not overexpect.
I think Xabi Alonso always had a lot to offer, he built up to last season pretty well, and the last season will always be remembered for a long long time. Only if they had won the UEL final, that would have been an unreal story, only one of a kind.
This season will not be the same definitely, but they still have a long way to go, a lot of games to be played still. If they manage their players properly, give all tournaments an organized approach, they can win trophies this season too, definitely.