The thing with Draven is he falls off like a lead balloon and he takes far more skill than Ezreal. Ezreal is more mobile, scales far better, and doesn't really fall off at all due to his ability to abuse utility based items like Iceborne and being able to build some AP, such as Hextech Gunblade or Luden's. Draven has far less effective range than Ezreal as well.
Furthermore, you don't even have to hit your enemy with Iceborne; you just have to hit a unit near them and they're instantly slowed and made easier to hit by virtue of its an AOE slow. You can't actually get in range of Ezreal as an immobile ADC and even the mobile ones can't do enough damage early on through his huge bonus in armor.
And no, no other ADC can affectively rush Iceborne Gauntlet like Ezreal can. None of them can proc it with as much efficiency and easy as Ezreal can. None benefit from the sheen proc quite as hard as Ezreal does. So no, no other ADCs can build the same thing.
His lane is uninteractive, making him frustrating to play against since that is the prime time to be punishing him; its intended to be his weakest point but it doesn't matter because his Q spam and his E make him the absolute safest ADC in the game, bar none. His midgame spike is massive and his late game is actually not that terrible either. His massive range and high scalings mean that it doesn't matter if the enemy Jinx has gotten her items; he can out put huge amounts of damage from safe range where as Jinx has to get into 700 units(which is actually shorter than most dash ranges).
I believe he is actually one of the highest average damage per game ADCs in the game. Champion.GG isn't the most reliable source, admittedly, but they do list Ezreal as fairly high up there, beaten out only by Kog'maw.
https://champion.gg/statistics/#?sortBy=general.totalDamageDealtToChampions&order=descend
They continually have to nerf the champion despite his flagging WR because people find him frustrating and unenjoyable to deal with. Maybe its time for them to admit something has to give and, of the options on the table, the one least problematic for Ezreal would be the removal of his ability to proc Iceborne Gauntlet.