Galbatorix makes a really good point in the linked topic - popularity doesn’t necessarily reflect how effective a weapon is. Just because everyone is using a weapon, doesn’t necessarily mean that it’s the best. For instance, what if a popular content creator had a challenge to, say, win missions with the ion blaster (or even an official challenge?) and suddenly every man and his chicken is using Ion Blaster? What about the new players who pick Lightning Fryer because “It’s cheap and it looks cool and my starter weapon is trash!” without any idea how it stacks up against other weapons?
Theoretically, if every player was 100% efficient and unbiased and picked whatever weapons are objectively “best” - this system would work. But we’re humans - some humans pick what’s best, some pick what’s popular, some pick what’s a meme, some pick what looks pretty and goes with their spaceship, some pick what’s best only for supernovas because they want lots of keys.
This system would prevent a meta emerging - but the weapons would never truly become “equal” either. So that’s why it (unfortunately) doesn’t have my support.