There is a long list of other bugs, bugs that should have been immediately present to the dev team before the game even released during testing. Those have yet to be addressed.
Ask yourself a question, do you think they tested this new content? If you answer yes, then how competent do you believe them to be that they did not catch this bug. If they were unable to notice this with testing, how long do you think it will take for them to fix it? If you answer no, do you think they have the time or interest enough to fix this in a timely manner?
The mere fact that this has happened, even after the MP released with a SLEW of bugs ranging from big to small, shows exactly what to expect from this MP going forward.
This was their first chance to say "hey guys, we know the MP released a little buggy and we're still working on that. Heres some free, new content hot off the devkit, this time we made sure there won't be any problems. Please enjoy it while we continue to work on the remaining bugs that are soon to be ironed out".
Not only did they completely ruin their first impression, they ruined their chance to make a better second impression. Third times a charm, no?