I see the benefit for B&O much greater.
If you study the page of roon, you see how many brands offer roon ready or roon testet devices: Shiit, Denon, Nad, Cambridge Audio, just to name a few (there are over 100). All these companies take the trouble to integrate RAAT. And now it shouldn't be worth it for B&O, because we... are different🤔
Besides the above mentioned points from Alsfeld, Richarldlll, Sandby and trackbeo, I also see the advantage that you don't have to integrate every provider into your app because the customer xy would prefer that, Roon is interested in integrating more and more services. And yeah, it handles NAS really well.
It's exactly this possibility with the trouble-free streaming over different devices that lured me away from B&O. I don't want to be dependent just on B&O equipment anymore, and yes Beosound Balance sounds really sensational for its size, but I think its look... now, let's say it's just not my taste.
Now I have a Naim Uniti Nova in the living room which drives my Piega CL 90x, I have a Naim Muso in the bedroom, a Bluesound Node II in the "office" which drives my Beolab 4000 and in the bathroom Bluesond Pulse flex. And all work together nicely without any hassle. With Airplay and Chromcast I had my trouble with it, besides the fact that it took me far too long to start anything.
If B&O was Roon compatible, I would have kept 99% at least of my Beosound 1 in the bathroom.
But I still have my Beovision Eclipse 🙂
But it could be different, a customer sees a B&O device, he can integrate it into his setup via Roon and then he discovers for example how elegant the "Touch to join" function is and he might buy more products. And B&O must sell more products....
By the way: as far as I can see, the "Touch to Join" function is really unique (and i now testet a few). No other company has done it anywhere near as well (and if they could integrate it with Roon, that would be top notch, but of course not very realistic).
But anyway, we will see what the future brings....