they’d be better off heading down south from Megaton and then taking a ferry across the Potomac to reach River City.
How easy is it to find a ferry in the area and use it though?
Even if they managed to find one, they're putting themselves in another great deal of danger by using it. Mirelurks live in the Potomac. Super Mutants have ranged weaponry. I think you're not considering just how difficult it must be to find a functioning ferry 200 years after the war and be able to use it without creating enough sound that the mutants will hear you from their bases just off the shoreline.
I am 99% sure that aiming down the sights/zooming in decreases the weapon’s spread.
Yeah, but that's not restricted to the iron sights themselves. As said in the post, it could've been a zoom-in and had the same effect of decreasing weapon spread. We've went over this. The iron sights feature itself is not special or it doesn't improve combat in any way. It's a visual difference. The zoom-in feature however is a pivotal part of the combat design because it has that effect on weapon spread. It's best not to conflate the two because that would be fallacious. If the iron sights feature was so pivotal to the design, Fallout 3's combat wouldn't have worked at all, even in the semi-functioning state it is in. The game really did NOT need iron sights, it was thrown in because it was 2010 and Call of Duty was everywhere. Functionally, the zoom-in feature and the iron sight feature are the exact same thing. Their only difference pertains to how the player views the model.
This supposed strategy of the super mutants is never stated nor implied
I've given several reason it's implied. The mutants have bases close by to Rivet City. Simple logic predicts that if they weren't using the settlements to their advantage they would be attacking the settlement rather than letting it exist. It's not like they don't know it's there. The fact that they went the full mile and added a prisoner to the base proves that this was intentional. There are only a handful of bases with mutant prisoners on the map. This was entirely intentional.
Two out of several dozen.
So? I mean at least we got some degree of personification out of it. I love Fallout 1, but I can't recall any times in that game you could befriend a super mutant.
And even then Fawkes isn't exactly smart (hes hardly above Harry in Fallout 1)
This isn't true. You could bullshit Harry by telling him you're a ghoul. He's literally blind and stupid. Fawkes on the other hand will only join you once you reach a certain karma level, which shows that he is intelligent enough to discern between the kinds of people he meets.
The fact is that the East Coast Super Mutants are shown to be complete idiots who only care about killing anything that is not a Super Mutant.
The FEV destroys their cognitive functions. The West Coast Super Mutants were led by the Master, so they had a leader that was at least somewhat intelligent that dedicated them to his own cause. Mutants on the East Coast don't have such leadership, so their hierarchies' goals are centered less on the long-term and more on the short-term. They're obsessed with preservation. They learned of their sterility early on and it broke them. They're not fighting for a cause, they're fighting for survival.
It goes at odds with anything you claim they do (it's a plan a little too complex for a bunch of bloodthirsty psychopaths)
If they were just "bloodthirsty psychopaths" they wouldn't have any such hierarchy or organization. They would literally just be Fallout 4 super mutants, suicide bombers and all. Uncle Leo disproves this assertion anyway. He shows that mutants can think for themselves but are subject to herd mentality and compliance within their ranks.
It does. That's been the entire point of aiming down sights since its introduction.
And on the whole, it's bad combat design. The zoom-in was one thing, was iron sights were just horrible. I don't understand why this is even being debated. New Vegas gives you the option because the developers understood that not everyone would like having to stare through an aperture in the metal or having an ugly sight obstruct their screen. The ADS function itself shouldn't have been included in the game in the first place in Fallout 3, and it still humors me that even after acquiring Id, Bethesda still went full steam ahead with the iron sights Call of Duty-esque gameplay in Fallout 4.