That’s true Chris, however, it has been on Roon’s Roadmap since 2015 …
Which does set expectation, so it’s quite fair to ask questions and make comment on it … but of course there is still no entitlement … Roon is what it is, new features no matter how anticipated they are should be consider a bonus.
That said, Danny has recently responded in that topic, it looks like a step closer now … in that the development work for this is now scheduled. At least we now know that that light at the end of the tunnel is not another train heading towards us 
https://community.roonlabs.com/t/remote-playback-over-internet-on-roadmap-scheduled/3382/55?u=carl
Whilst on topic as the OP mentioned it, the main subject of this topic is for better Roon integration of streaming services, so I’d suggest we focus on that aspect and leave Remote playback to the existing topic.