I get the philosophical idea of challenging our default assumptions and remember people who are’t right in the middle of our conventional map. Good thing to do, sure.

But, the fact that Africa and South America are pointy on their southern sides makes these kind of maps look awkward and bad IMO. It is like adjusting a paragraph so that the extra white space is in the first, instead of the last, line. Or putting the shortest line of a multi line function definition at the top, instead of the bottom.

We’ve all seen ragged-right and ragged-left typesetting, but never ragged-top.

Yeah I'm not sure why taking the same projection and mirroring it does anything. Surely you'd want a different style of map entirely for this kind of project? Africa could be much larger in it for instance