Presumably these middleboxes have some critical density. If google deploys 1.3 and 50% of corporate users can no longer reach google's services, that would be

Presumably these middleboxes have some critical density. If google deploys 1.3 and 50% of corporate users can no longer reach google's services, that would be seen as google's mistake. Moreover, that would hurt google quite a lot. The issue is that these boxes are already deployed, and it wasn't noticed just how shitty they were until we tried to deploy 1.3 . The system has essentially rusted shut.