I don't like Rune Knight

[Amnestic]

The same criticisms might be levelled at the Fighter. Some might say the Fighter is the one with less dimensions and worse theming (dare I say, myself included). Potato Potato.

Fighter gets one more subclass feature slot (3rd, 7th, 10th, 15th, 18th) vs. Barbarians (3rd, 6th, 10th, 14th). Easier to express a subclass' themes and stuff with an extra level to do so. Even if that is just "now you grow HUGE instead of LARGE"

(this is also part of my issues with Bard - 3 subclass features? Really?)