From my personal perspective.
The minimap amplifies a certain feeling of boredom. Perhaps the main reason is the lack of cooperation between players.
In the default mode, it is particularly easy to turn into a one-sided battle or a PvE battle. Even if it is a sweaty battle, many players will not be willing to persist.
As compare
If there are many players in a large map, especially in a custom game with a persistent server system, players will constantly entering if someonve leave, making the game always full of players.
Because the map is so big, every player can do something in it and cooperate with each other. This gives me a certain sense of play.
And occasionally playing other special game modes (made by other players) is also refreshing in game experience.