well simply put, game sense doesnt matter until you are able to act on it.
while i would disagree that a bronze player (or anyone in the metal ranks for that matter) would have any concept of real game sense, even if they do they likely arnt able to act on it simply because their fps fundamentals (aim, positioning, awareness and so on) are all really bad.
the people that tell you game sense is the most important come from 1 of 2 groups.
group 1 are people that play in masters or higher. the reason we’ll say this is because for US it is very important for climbing higher then we already are. so from our perspective it is the most important thing
group 2 are people that play in the metal ranks (bronze, silver gold and plat) because they were told game sense matters the most but you’ll notice they arnt climbing.
the difference between groups 1 and 2 is that group 1 already had the good fps fundamentals required to climb and then slowly improved game sense over time. the problem is group 1 alot of the time forgets how important those fundamentals are and will over value game sense in the metal ranks.
while their are heroes that have basically no mechanical requirement and focus heavily on game sense they are not the norm for the game. chances are aslong as you arnt playing a hero that obviously never has to aim you probably need those fundamentals.
the most important of those fundamentals as i already typed are; mechanic’s (both aim and movement), general understanding of macro and micro positioning (knowing to stand near cover relative to the person/group you are fighting), awareness and cross hair placement.
these are fundamentals of the fps genre and thus are universal and can be applied to any fps game.
luckily if you have these well trained you can easily hit diamond and sometimes even masters off just this alone.
game sense is built over time based on the experience you have while playing against other people. but if the people you play with are bad and arnt playing correctly your game sense is tuned improperly and will need to be retuned as you climb. this is why the game sense heroes are so difficult for people to climb with who arnt already good.