We have distance like this in many leagues as this can happen to any team like we have in past by Bayern Munich and then PSG and in last year we have Napoli which was once having 17 points difference and then now in current season mostly teams are doing good competitive performance but as described PSV is playing completely in another level which is giving them good edge just after 16 rounds.
Currently, no doubt having this distance here in Bundesliga between these two teams is nothing and Bayern Munich is also having good ability to fight back without any problem but right now as we have consistency in Bayer Leverkusen is also impressive and things have never been challenging hopefully, we will have good end of this season.
But there is also a difference when the gap is big because all other teams are weak or whether the gap is big because one team is playing on an unbelievably high level. PSG has this huge advantage mostly because Ajax Amsterdan isn't able to sort out their issues because otherwise the gap would probably not be as big as it is now. But in the Bundesliga it is now that Bayern Munich finally has a competitor who wins game after game with hardly any interruptions of their winning streaks.
I believe that when there is a big goliath level team like Bayern and a team that is david like leverkusen, that fight is a lot more fun to watch. In football world goliath usually wins, it's rare that we would see the smaller team wins but when that happens it's super fun. I am not German, I am not from anywhere near these two clubs and not fan of either of them.
However, if Leverkusen wins the title this season then I would be a lot more happier than Bayern to be fair, because it means that we have seen someone take down a giant and that's always a fun thing to watch, it is always something that I would end up having fun with. This is why I believe that we are going to end up with something that should be a bit more fun in the end.