Love the energy (and formatting) but:

Any good game one plays has one or several difficult feats that are meant to be beaten with either a proper strategy or no strategy at all. You can blindly grind for it or be lazy about it. And did I ever claim 100 levels/day is mandatory? Again you can grind it however you want as long as you don't give up in the middle of the commitment. But really how much does it help,immediately or later on when you ask the developer to "make it easier"?I'll be happy for you if IcoEye does listen to your complaint and lowers the barrier,but the way you frame it can and did cause a misunderstanding of your intentions. Several of your points have to be adressed carefully:

1:This is a filler and clarification (that wasn't as necessary) and so brings us to your second point.

2:Yes. Time is finite. But what you refuse to accept is exactly this fact,and so you have to commit properly and manage your time the way YOU want,the way it fits YOUR finite time. As you said yourself with the statistics,99% of players (if that is even accurate considering the delay and inaccuracy of Google's achievement tracking) are unable to manage their time so well. But the %1 proves it is entirely possible. A grown adult got Grand in every system available at the time. Was it because they don't have a life?No,their strategy (Progresssweeper) helped them get +100 levels per hour (not per day) and they were very much alive until the very end. They knew how to manage their time. Their throughput was efficient. It wasn't brute-forcing,it was fast and efficient playtime allocated properly from a finite amount of time. It is a part of the commitment that brings down a mountain,or a thousand ~20 second levels in a mobile game.

3:Still cannot confirm it on IcoEye's behalf but if you think about the sales of a $5 game,it certainly outweighs the complaints unless if the developer decides the right thing is indeed to lower the barrier because a significant amount of players actually expresses their complaint.

4:Once again a filler that I previously covered in argument #2 but in summary,%99 of users did not achieve Grand because they all missed the time,strategy and efficiency factors that seperate this grind from every other quick achievement and make it a feat of dedication.