It is fascinating to think that before digital circuits phone calls were accomplished by an end-to-end electrical connection between the handsets. What luxury that must have been! If only those ancestors of ours had modems and computers to use those excellent connections for low-latency gaming... :-)
Einstein would like to have a word…
And for the little bit of impact queueing latency has (if done well, i.e. no bufferbloat), I doubt anyone would notice the difference, honestly.
The latency benefit would outweigh the cost. Just absolutely instant video interaction.