Why this game is poorly balanced

Look at these champions:

Now look at these champions:

Now look at these champions:

The first row of champions have reliable blinks or dashes with or without being un targetable, sometimes vanishing. These champions are never at the bottom of the popularity.

The second row are champions have stupid amounts of mobility, while still shining in many areas such as tankiness, CC and damage. None of these champions are ever at the bottom of popularity

The third row are tanky champions that have surprising amount of bursts of speed, and have abilities that do things like, percent of damage based on missing health. Generally, none of these champions are ever at the bottom of popularity.

And then you have the rest--champions that don't have stupid mobility, that don't have reliable dashes or blinks, that don't have abilities that do contingent things, like a slow that could be a stun, such as Irelia, or a burst damage bit like Voli that also does extra damage based on how much health the enemy is missing.

There is nothing wrong with these champions. The problem is how dis proportionally power and effectiveness is distributed among champions.

There are so many champions that, when you see you are up against them, you don't worry--you know they are manageable. But when you see a team that has a few of the ones I listed, you groan. You know you do. You groan because your subconscious mind has tracked the fact that, over all the ranked matches you played, these are champions that often can destroy your team.

Look at these champions again. Generally, they aren't lacking in power or CC either. They have given up nothing to be blessed with more mobility and more defensive abilities that make them untargetable or invisible, which is also very offensive as well.