I think well designed SMPS is great, but not every device out there ships with one. For my exclusively digital devices near my audio I use iFi SMPS adapters.
I'm not sure if the Benchmark article covers it, but SMPS have two issues, potentially when not well implemented. 1. The noise on the DC end, 2. The noise they put back into the AC.
It's also the 21st century so I hope we rely much more on them now!