MQA is not a solution, it is an option, a choice. I do not download hi-rez files, I like to stream music. I had used Spotify, but I find MQA on Tidal sounds better because of the hi-rez. I did worry or at least wonder around the years after 2000 how record companies and recording artists would continue to make money when Napster, Gnutella, Freenet, Kazaa, Limewire and other free music sharing music online companies were allowing artists music to be shared and CD sales, along with other music sales (such as albums) were declining year by year. Tidal is one of the most generous companies as artists make about $0.0003 per play. That was info from 2017. Amazing, Napster had top payouts at $0.0167 to $0.0190 and Tidal was 2nd. I guess after Napster was sued from the major record labels and users could not steal music any longer, some balance was brought make into music making by artists and music enjoyment by consumers.
Therefore Tidal allows me the option to stream hi-rez files, which sound great to me, they add albums all the times and I know musical artists are getting paid for their part. Paying for Tidal is not different from buying an album, buying a CD or paying HD Tracks for a download.
I will admit that I do not like all the licensing fees that MQA has built into their technology. But I do not think MQA will last long. Once the bandwidth opens up past 5g I think? hi-res files will be passed without any MQA needed.