Well in the terrain sense you are 100% right, but when it came to maps it all boiled down on the resolution and the way the designer textured it.
Again, low res limit. It was impossible, let me emphasize,
impossible, to have terrain that looked nice everywhere.
And if it went to a vote and the majority wanted a v20 master server list, then yeah, by all means it would be 100% fair. He's not obligated to in any way though, and it really is rather pointless. But the plain facts are basically nobody cares about keeping v20.