I bought a similar map from a shop in Australia and thought it was a really cool way to look at things from a different perspective. Perhaps un-surprisingly, it has Australa front and centre.
I think rather than berating people for allegedly stodgy thinking that a better approach is just that everyone has an equal moral right to produce a map in which they are in the position of prominence, and since everyone can do that equally, nobody should be running around complaining about any particular orientation.
https://hemamaps.com/products/upside-down-world-in-envelope-...