T17 map layouts are too monotonous

Apart from all the other current issues with T17 maps, I have one big concern, that noone is talking about.

Why does every T17 have a "tube-style" layout?
Why are there no open maps like Dunes, Cemetery or Jungle Valley?

Every currently available T17 map feels like Silo or Defiled Cathedral.

I think that different builds have different strengths and weaknesses in certain map layouts and also the enjoyment factor of running particular map layouts is not the same for each player.

I think there should be more variety here.