FrogReaver
As long as i get to be the frog
That qualifies as SOME circumstances though doesn't it? Not every fighter fits that bill. Your fighter might also run out of ammo, or have it destroyed, or be disarmed, or be facing a foe with a high AC and cover from missiles, or be in a situation where the rogue has advantage and the fighter doesn't.
None of the fighters in our group use that combination and our only archer is currently an eldritch knight, who might consider swapping to an arcane archer once that option becomes available, I suppose. So, while your point is that there are SOME circumstances in which the Rogue's damage will be similar to the fighters, there will be others where this is a viable or superior tactic.
Of course. So what? You do realize that the optimized fighter is the only one that is keeping up with and surpassing a normally built ranger in damage for most of the game right? The ranger even gets added exploration abilities.
If you want to talk about unoptimized fighters being better with commander's strike be my guest, those fighters fit the OPs profile that fighters do inferior damage and have no extra out of combat abilities. Essentially they are inferior characters. The single extra feat they get for most every game isn't enough to catch them up. The extra attack at 11th level is but most campaigns end by then or just a few levels later. Even then they are still out exploration abilities.
Essentially the OP is right about all fighters except optimized ones. That's why all I am talking about here is the optimized fighter. It's the one build that a fighter fan can use to show that fighters are solid characters compared to the other fighting classes. If we aren't discussing them then the OP's point is spot on. Why are you even playing a fighter to begin with?