I'm sorry for the mapmaker but I assume my words. We are speaking of maps to which purpose is to be enjoyable when played, not canvas to be printed in your bedroom wall.
Making a map beautiful with a lot of details isn't making of you a good mapmaker. Ensuring the map is balanced and provides an acceptable level of gameplay does.
Appreciation on canvas are subjective from your personal preferences in matter of art. I'll never say a canvas is a piece of shit because I dislike it.
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im sorry to break it to you but most ppl who play community maps in custom matches love shit maps. so for all we know, this map is a fantastically made map in that sense.
the blame solely lies on relic who chose to put it in the game. and ppl who either suggested this map and ppl who were in position to advise relic about this but did not.