Bad mappers blame players. Good mapper blames the map, and uses the wisdom gained to make a better map. Players blame mappers because they need to blow steam after getting so riled up. Players got overheated and now they're burnt. Fighting people who are on fight mode will just make things worse. Experienced mappers know what things players enjoy, and use them to pace the maps better and calm them down. You can never satisfy everyone, and most players drop maps quickly, so mappers should be grateful for those players who put up with the maps and bullshit of us mappers.
In the end, mapper puts time to make a map, but the player also uses time to play the map. Mappers should not take the preferences of players personally, players can like the dumbest things, and play the dumbest ways, but they do that because they like it, and mappers do maps the way they like.