I do agree with both of you but we cannot always be local : if you are itinerant, with mobile tablets or laptops?
there are and there will be so many different platforms, hardware configs, OS,
with so different capacities/perf, that it is worth we stay curious about such technologies which can widen A LOT the audience of any serious game.
I do not say that this is a Must
but I am right now testing this techno with Mass Effects on a 13" laptop in WiFi, and it's nice
soon they will have an iOS app, so think about running OT on an IPad... or a smartphone
And they are announcing
4K and 8K over IP for soon !
think about OT running on a super cloud Nvidia grid, with fast 2 way streaming!
When you run a soft company, you have to be able to provide support to as much users as possible, means wide compatibility and in consequences a lot of effort/time/money from the developpers to maintain such compat.