Of all the things that should be using strong encryption by default, router and server management interfaces are at the top of that list. Those interfaces _do not_ have the kinds of high-performance transfer requirements like that of bulk data transfers or streaming video services.
As for bulk data transfers for government-funded scientific research, data integrity for anything having to do with clinical trials or personally-identifiable information is among my highest concerns. And unless we're pumping that data across private fiber, the latency and bandwidth limits of the global Internet far outweigh the overhead caused by encryption/authentication algorithms.
(I would add that I think bulk data transfers ought to be encrypted over private/internal networks as well, but that's an argument for when I'm not on mobile.)
As for bulk data transfers for government-funded scientific research, data integrity for anything having to do with clinical trials or personally-identifiable information is among my highest concerns. And unless we're pumping that data across private fiber, the latency and bandwidth limits of the global Internet far outweigh the overhead caused by encryption/authentication algorithms.
(I would add that I think bulk data transfers ought to be encrypted over private/internal networks as well, but that's an argument for when I'm not on mobile.)