@Mentieth

You're taking the quote out of context. Number of options != power of character. Extra options can affect the power of a character, but they are not the same. Everything you've said here is a stated goal of DnD 5e.

@Seerow

No, you don't. First off, a level 5 wizard has exactly 9 spells as per the most recent playtest. Second, a fighter's maneuvers are at-will, rather than daily. If a fighter had the same number of maneuvers as a wizard, that would be a problem, because it would mean that the fighter has the same number of options every single round that the wizard gets over the course of a day.