Cool, we're in agreement about that. @
Hussar doesn't seem to agree, based on his complaints about his fighter getting overshadowed by variously sorcerers, rangers, rogue/battlemasters, and paladins.
I think that the point of comparison is the 3rd level fluff ability within the Fighter subclass. So, proficiency in artisan's tools for a Battlemaster, or the Weapon Bond for an EK, and doodly-blank-nothin' for the Champion. The utility of these abilities is much more campaign-dependent than the combat abilities - a paladin might never encounter a fiend, while our Battlemaster brews healing potions in their downtime. Or the opposite might occur. In both cases, it's kind of up to the ability owner to make the most of their ability.
I can say that as a DM, if a Fighter wanted to make another skill check because Action Surge, I'd be
happy to let 'em. It's a significant resource they're spending on that skill check. But again, out-of-combat stuff is much more variable by campaign than combat-based stuff, which is why it's kind of hard to evaluate and compare across noncombat abilities. You can say that Weapon Bond is useless, but then Eddie gets a magical axe he can leave as a calling card embedded in his last victim and can call it back to his hand as a bonus action from anywhere on the same plane and suddenly it's a bigger campaign element than detecting a skeleton ever was. These things are VERY context-dependent. Though I certainly wouldn't object to fighters getting some better (or at least more evocative) level 3 fluff options in general.
But my point is, they have them, and so they're meeting that threshold of rough balance for me. Battlemasters brew potions; EK's summon their swords. Champions don't do squat, but that's kind of the Champion's schtick, so as much as I'd like to see them with a ribbon, I don't find fault with WotC for not giving one to 'em out of the gate.