Overpowered or no?
A little but overpowered, but every other part of her kit is weak as fuck, (And I still think Kunai > Blast because you can loose blast without seing anyone, making it not reliable for an eco round)
To me Neon being picked is just have an overeaction to the up, combined with some player that have affinity with her, but in long term she will return to the 5% PR clan by next year because every single spell Jett have is more powerfull than Neon's.
Without a rework, Neon will remain a niche peak that you can pick only if your duelist love her mush more than Jett