For audio, I think it is. PS Audio, you develop it and then scream at everyone to adopt it.
It has already been done. See, e.g., Bel Canto’s Black system and its StreamLink glass optical ST datalink interface.
And Lumin X1 uses Gigabit SFP.
I’ll concur on the Bel Canto Black. A friend of mine Sold his Dave and Levinson System for a “Black Dual Mono Stack”. The optical setup is excellent and simplicity with a ton of engineering and design in execution.