Considering Leipzig managed to pull through, Freiburg needs to at least keep that fifth position, not that they won't be able to, because they are good enough to do it, but it would be a difficult task and it would be very upsetting for the fans who expected 4th and possibility of a big cup, and then drop to 6th instead.

The money difference is a lot as well, being 4th must mean a lot more money than being 6th by the end of the year. That is at least FM thought me, I remember clearly fighting for 8th spot in premier league, which meant nothing in the grand scheme of things, but mattered to me because it meant more money given to me and more money to spend on transfers lol.