That’s just the thing is it not - NDA’s invite this very speculation. Respectfully, your “pretty sure” is no more informed than anyone else’s “pretty sure”. NDA’s such as MQA’s are poison to the truth - that is their very point, to hide the truth. Why? In MQA’s case, because they are attempting to change our open market (at the format level) into a closed market.
Also, @a.dent rightly pointed to the agreement between Roon and MQA, not agreement(s) between Roon and Tidal, MQA and Tidal, etc.
Beyond all this Roon is upstream saying that the privileging of MQA is “a bug”. I don’t doubt this, at this point. I expect this “bug” to be fixed in the next update for surely it is a small thing…