tell me why u think jett is better
You're realistically not going alone. Your teammates are supposed to trade you. Suppose you dash ascent gen. You play the left side and are a constant threat to a defender playing dices or under. Even if you take a fight with dices and die, they are less likely to peek main and kill, so your teammates can take a lot of space and eventually trade. What if you dash genny and fallback with waylay. The dices guy wont have to worry about his right side of genny, and suppose he's playing something like sova or omen, any piece of utility like flash/recon he can get some easy kills/stop the push.
I agree with that, but I think Waylay is a botched attempt at a Jett 2.0.
If you want a higher survival rate while maintaining control of the space you've taken, Iso's rework fits that concept better. You get the kill, keep the space you've won, and continue applying pressure with the shield on. I think more people feel pressured to give up space to Jett or Iso due to their kits, whereas Waylay doesn't have that same effect. Her utility, aside from the TP back, feels more like a cosmetic.