Ironicly yes that is a reason
Well we are in 2 item zeal meta
Other carries prefer 2 item zeal meta more
Vayne has W and AD steroid
Twitch has Both AS and AD steroid
Kog has on hit steroid
Xayah does 3.0 of AD with her BUILD AND W - Her power depends on crit specially IE
Trist has insane safety
Ezreal is really not comparable to jinx
And there you go this are all the top tier AD carries
There is also Varus which can overlap with jinx
But varus has anti tank and anti support niche. Which is why we saw bunch of varus at world out of nowhere
in ADC-Babysit Support- Tank distract meta
If we ever go to double Triple AD item rush then jinx will without question be meta as she has one of the most insane AS steroids
Currently Jinx isnt to far
IE into double zeal is not as strong on jinx as it is on other since her AD is then kinda low and new bad fervor cant compensate it
Now if Riot were to nerf CRIT itemization Buff jinx and then nerf Kog I would agree with it
This isolated buff is just bad ):