MQA had a reason to exist a few years ago, but now, it's lossy compression scheme (containers inside containers in a "zip file" scheme that needed to be mathematically "unfolded") simply isn't needed in a world where the Internet is fast enough to stream full-bandwidth 24-bit/192KHz PCM files. Times have simply passed it by. Hopefully Tidal will jump off this bandwagon too. Now, who knows what tomorrow might bring if someone wants to buy out MQA and keep it going? Or invest in them. There are various kinds of bankruptcy. Some companies emerge from them and keep going, others do not. With even Spotify finally thinking about lossless CD quality streaming, (after lying to us a few years ago), times have passed MQA by.
Oh, you'll have some "enthusiasts" out there who will swear it "sounds better" but independent testing, examining the files, shows otherwise. Time to say goodnight, Chet.