This might be the best season for Freiburg to finish in top 4 because Leverkusen made a quite bad start and started to recover really late. But Freiburg wasted this chance as well. After a fight with Union Berlin for this goal the winner was Union Berlin. Especially that loss against Union Berlin by 4-2 on the final weeks caused Freiburg to get behind more and lose their chance significantly.
I think Freiburg board must be satisfied with the work Freiburg have been doing so far anyway. They have already been not a regular in top 4 so being right behind that area is still success for them. As long as they maintain their game quality there should be no problem.
There is no doubt in this season we have impressive run from the Freiburg but their all hard work gone in vain as they lost their last three games from four which bring them down to fifth even things were completely into their favour, but this inconsistency hurt badly still have rank above teams like Leverkusen and Frankfurt is good end of this season now they need to keep this momentum because next season could be tough with few teams are trying to improve their quality for the better performance.
With now next season is under preparation, hopefully board will try to improve quality because now it's important to have better things for the both competition in Bundesliga and UEFA Europa Cup because more load mostly hurt badly for the teams like them.