Being able to play MQA on non-MQA certified DACs is not the same thing as listening to it at it's best. I think this is the real point. It appears that according to Meridian if you don't have a MQA certified DAC you will be treated as the redheaded step child. We will let you come to the party, just not be allowed into the "special" room.
Again back to the deep down thing about MQA.... it is in fact PCM but with Meridians "special sauce" for those who buy into their party, so to speak. And again I go back to that anyone I have read doing head to head comparison's, MQA versus high resolution download versions of albums have came away saying that the high resolution is better. High resolution is not much larger file size than MQA and everyone is invited to the party and the can experience the benefits using their current playback software, i.e. JRivers, Roon, etc., not a separate application just to play back their "special" files.
And for purity of sound most people agree that DSD is even better, but is definitely too large for streaming. For us non-streamers file size is fairly irrelevant. And again I will relate back to conversations I have had with an artist who is one of the early MQA adopters. He had also done extensive recording in DSD (I own several of his DSD albums). According to him, DSD is the best sounding digital source but MQA is much easier for streaming or for carrying on a portable. And almost every current DAC has some kind of DSD capability along with PCM, with a few exceptions. So the hardware to play these formats is in the hands of most people who really care.