In this particular (Netflix) case, what's the worst that could happen? One of their OCAs panics and falls over... and all customer traffic gets shifted to anot

In this particular (Netflix) case, what's the worst that could happen? One of their OCAs panics and falls over... and all customer traffic gets shifted to another OCA in the same or another location? Sure, they might run into some bug in -CURRENT, but what's the chance of a bunch of their OCAs all hitting it at the same time?