They share points so that their position in the standings remains the same and they actually have a chance to improve their position because several teams above them have lost, but sometimes it's just mediocre to share points.
In the next match, both teams will face an equally tough match against Wolfsburg and Leipzig so Bochum and Heidenheim will still be in the same position unless Darmstadt and Mainz can win then they will drop in ranking.
Union Berlin is still unable to improve their situation even though they were able to draw against Augsburg and next week they will face a very difficult match so it is very likely that they will suffer another defeat and remain in the bottom two, and Union Berlin are one of the disappointing teams this season compared to last season, just like Mainz, who performed quite well last season, but this season they are still struggling to survive from bottom three.
Bochum and Heidenheim are two teams in the league that have the same tempo of movement on the table, they ball round thesame points and goal margins and they seem like they're in their own special race, both teams will be facing a more tougher side next weekend and it's very much likely that they both will maintaining thesame tempo cos their opponents doesn't seem like they'll let them have their way.
Union Berlin wasn't on their part able to put up some good play of football over the weekend, the couldn't get a win and it's really bad because their next win is unpredictable, they've got to go against a team bigger than them and their superiority over the team is not certain, this defeat will definitely keep them in the bottom spot and it's disappointing that they'll have to keep struggling out of that position.