Honestly even with this it doesn't mean that Leverkusen will win the league. I understand that Leverkusen fans are super excited for now and I can see why and there is nothing wrong with that, I do get that it is going to be something that will benefit them for the long term to have that five point lead. But do we really think that they will not get a tie?
Not even a single loss all season long? They have 5 points now, if they get a tie and Bayern wins then the difference is 3, if they lose and bayern wins then Bayern is right there. So, they need to do very well and it is a risky thing. Doesn't also mean they will lose, they could very well win more points than Bayern for the rest of the season and looks like they probably will.