jinx is unironically in a good place in soloqueue right now with all the coin+ardent rushers.
jinx was also stupidly overpowered on release at the end of s3 and continuously nerfed (while still being op) until that rocket as speed change actually killed her (well, not killed, but incredibly clunky to play) in s6, i think? then they fixed the rocket as speed while still keeping her in the nerfed state, and she's been in a reasonable state in soloqueue since.
the only reason she's not in pro play right now, despite the favorable items and supports, is that she isn't as safe/mobile as the adc pickbans. if it ever devolved to a point of teams banning 5 adc i'm sure people will pull out the pocket jinx.