Over-analysing is one thing, asserting that the artists and designers even cared and then setting out to prove it is another thing. It's plain and simple delusion.
And the author claims that where exactly?
He even states that he contacted Beth and was surprised that they didn't have consultant.
Of course, if they did have a consultant, then maybe Skyrim would have better material lore, no solid quicksilver, no corundum ore, and no malachite==glass.
We were doing almost exact same thing with one dude on TESF once, except with morrowind, with more focus on materials themselves and bigger picture than geographical details.
It worked out pretty well, and was p. fascinating sperg - in no place have we claimed that beth's crack team of highly trained geologists was behind it, studying the effects of impact of lump of exotic matter on geology.
people have now written essays on Turian sweat and the geographic composition of Skyrim.
To be fair, you can't really fap to geology, so at least the latter are sincere 'spergs, not thinly disguised derpsturbations.
Bethesda makes cities in Cyrodiil and Skyrim close to the Morrowind border a mix of local and Morrowind styles.
Dude, just no.
No matter how charitable you are, nothing in Cheydinhal says "Dunmer architectural influences" even if you logically assume that Dunmer == Indoril, in this case due to geography and the fact that Indoril architecture is the least alien of all house styles.
Yes, there are subtle architectural differences between oblivious' "cities" (successfully crushed by huge identical totally not cathedrals), but the only one that can be actually said to have any sort of cultural background to it is Bruma, and I'm not even sure of that - it might be just snow.
Fuck, Anvil looks more "Dunmer" than Cheydinhal:
Skyrim's Windhelm is better in this regard in that it doesn't try to pretend that it has architectural influences or anything.
Grey Quarter is just a slum full of disgruntled Dunmer refugees who settled there.