I'm going to be completely honest, what about Marvel Atlantis is actually interesting and unique?
The most notable things about the setting is that it's people are blue and Namor lives there, but beyond that what has been done with setting that makes it genuinely interesting and irreplaceable?
In the MCU Talokan's people are still blue and Namor still lives there, so it's practically the same thing, feels like being pressed over it is more wanting things to be comic accurate for the sake of it not because it actually leads to a better story.
Like wanting MCU Civil War to be like the comics despite how awful that event was.