I think this is valid and constructive input from your side, and I personally don’t necessarily disagree!
But since the demoscene really is about the challenge of maximizing output from a system “as is” at any time, with all its limitations(real, by design, artificial, lame or otherwise…) in compatible hardware and its simulator, maybe it’s more suited for topics like these?:
https://forum.makecode.com/t/216-colors-in-makecode-sort-of/25616/27
https://forum.makecode.com/t/idea-for-makecode-s-limits/21659
https://forum.makecode.com/t/speech-about-makecodes-limitations/27867
Some people also argue that it is the limitations themselves that spur extra creativity and motivation for breaking boundaries.
While we are at it, I will also have that audacity(though scared of the repercussions…) to dare to challenge @Sarge’s claim:
I would contend(and support @Jedi) that MCA is also a fantasy console even with its real hardware support, due mainly to its simulator, and I am pretty certain that it would be accepted as such in real demo parties, at least some. Actually, I believe that you would have the choice between either submitting a MCA demo running on specific hardware in one category, or in the fantasy console category in the simulator.