His laning phase isn't "easy." It entirely depends on how he uses his W. If he uses it to push and harass, and his opponent is playing defensively, then he is massively prone to ganks. He is a 1v1 champion; there is no reason to complain if you let him get you low AND get hit by his skillshot and melee range spells to death without first being able to buy the big-ticket items that hardcounter him or at least having the mechanics or maneuverability to avoid his skillshots and get out of his melee range spell and autoattacks.
His laning phase isn't (and never has been) an outlying issue with this champion. No part of him has been a huge balance issue. Not his damage, not his mobility, nothing. And it's because he is so beautifully well crafted. His damage depends on skillshots and melee range; his mobility depends on his harass AND his escape. He is probably the best designed champion in the entire game in terms of fairness and reasons for having his power. Yet, he gets nerfed over and over despite being balanced. Heck, you can look up an old Meddler post yourself. I dare you. In it, he states that the 1 second nerf to Zed's ult isn't because of his power level; it was a philosophical change. Of course, all it REALLY did was make it extremely infuriating to get hit by random Ezreal ults or an Orianna ult that you can't get out of, (things you would otherwise be able to dodge if it wasn't for the artificial handicap in the form of the coodlown) but you still get my point: it wasn't a nerf based on power, it was a nerf based on philosophy, and Meddler said it himself. This is simply because balanced champions are not immune to nerfs OR buffs, because sometimes it's based on principle rather than power level.
Principle changes are rather unwelcome, for many reasons that I probably shouldn't get into right now as it would derail the thread, but I'm sure you can imagine a few reasons why nerfing and buffing based on philosophy rather than power level isn't always a good idea.
On that note, I know that you said in my thread about Zed (that you didn't even continue responding to after I clarified what I wanted to talk about, gee thanks Repertoir...) that you aren't exactly a "Zed expert." I am a Zed expert, and I'm not biased, because I've mained multiple champs and I've been playing this game for quite a few years now, so my opinions actually mean quite a bit. So I just ask that you trust me when I say, no, his lane phase is not "too easy." His laning phase is massively dependent on the way in which he uses his W in accordance with the behavior of his enemy laner.
I know you don't like to make long posts; instead, you prefer to hop into a thread, ask a question like "what do you guys think should happen", and then never reply again, leaving people with a hollow smile on their face. But I wasn't about to let your idea of Zed having a "too easy lane phase" go unanswered. Therefore I will not be surprised if you don't respond. I'm satisfied if you even read this far, because at least I managed to give some helpful advice about getting better to a fellow League player. Because at the end of the day, that's what you, and all Rioters are: fellow League players. And you deserve to be taught the game and the nuances of champions just like everybody else. Don't you ever forget that.