I think that's the best advice here. Under normal circumstances they could probably resolve these problems with little difficulty. It's easy to focus on the symptoms, but that's not the real problem.

The problem is that they're under the influence of an extra high dose of stress. They're not really themselves right now. The best thing they can do is constantly remind themselves that they're in a really stressed out state. If they can get past this and find a way to reduce their stress it's quite likely they'll be able to work together happily again.