I'm A Banana
Potassium-Rich
Flawed analogy, because the two-year-old already has a cookie, and so do all his two-year-old friends. Giving this two-year-old a second cookie wouldn't be fair to the other two year olds. Rage Strike is more like giving a syringe of insulin to a diabetic with a cookie, so that when he eats his second cookie after dinner (along with, once again, all his little two-year-old friends) he doesn't go into a diabetic coma and die.
The analogy isn't flawed, you're just kind of missing the thrust of it.
I'm not arguing about balance at all.
I'm arguing against an ability that is worthless for four levels. Against dead weight on the character sheet.
If you have an ability, you should be able to use it.
If you can't use it, you shouldn't have it.
I understand that this is "like" getting another feature at 5th level, but that's part of what I see as sloppy, because it's "like" getting another feature at 5th level, but it's not getting another feature at 5th level. It's getting a useless feature at 1st level.