Not sure why anyone would object to paying a company in which Jay-Z has an interest but is happy to support the enrichment of Jeff Bezos, one of the richest men on earth - a man who is happy to take basic health care away from his employees (Whole Foods), whose company fails to contribute in any meaningful way to the tax base to the countries who support and enable his business, and who is responsible for abhorrent work conditions at Amazon warehouses.
Tidal at least pays significantly better rates to artists than other streaming services and if you value music at all that is the very minimum you should expect (still not good enough admittedly).
Choice is good in my opinion, I would welcome all and any music streaming services being available through Roon, but anyone wishing Amazon to become the monopoly in High Res music or any other area of commerce should probably ask themselves what they are wishing for and why.