Bitcoin traffic should be limited based on capacity of anonymous bandwidth growth.
Growth, or decline.
The lowering max block size to survive anonymous bandwidth reduction (or even elimination) is more important than ratcheting it up.
Resiliency, not efficiency, is the paramount goal of decentralized, non-state sanctioned currency -Jon Matonis 2015 Bitcoin nodes should routinely operate in safe mode, and ideally be able to scale down into survival mode (sporogenesis+dormancy+reactivation) should there be indications of sufficient damage/disruption.