Can an open core company survive a recession AND maintain their community/developer mind share?
Your second part of the statement seems more relevant.
They're still rapidly growing but they're loosing their edge to Github who since being acquired by Microsoft can afford to play the long game and give away more at a better price point.
The stack that they provide within the free edition alone is phenomenally consistent and capable compared to the collaboration tools that teams had available when they started - a mere seven years ago.