snarzberry
Emperor
when i think about a deity domination strategy i can only think of a couple that are viable in a "it didnt hinge on luck" kind of way. i think the same goes for any vic condition in that the early eras tend to have to be done a certain few ways and changing gears for a different condition is nigh impossible. i havent seen any deity LPs (all the ones ive seen from wainy/maddjinn/tabarnak) that dont follow certain repetitive tactics/strats for the vic. Even Tabarnak's "no writing" game was still a 4-city sword rush. ive also never seen a deity LP of an archipelago dom vic. most of them are always pangaea.
I guess you're thinking more along the lines of 'attack hard and early, usually with iron units, produce GS's and sign RAs to unlock strong upgrades for your units'. You're right that is the general idea of a domination victory, but it's a pretty broad and incomplete statement that I've made there.
There's also archer rush - crossbows - rifles. Pikes - defend - rifles. Defend early - horse units - tanks or defend early - deep bulb to bombers, or to mechs. If you want to go on conquest in the first 100 turns then yeah you're either going to be playing a Chivalry civ or you're gonna want iron units. It doesn't seem narrow to me, that's what iron units are for. There aren't any other units that we have available to do the job at that time

Then there's all the other stuff like use of bulbs and SPs that can be varied and interesting and multiple approaches can work. Piety into Autocracy is something I've just discovered that is perfectly viable on deity and requires significant changes to early game development, compared to say a Rationalism game.
Think about how many ways you can approach the tech tree, targeting key military techs like Chemistry, Rifling, Dynamite, Radar, Electronics, Nuke stuff, Stealth and Lasers. There seem many ways to approach to me.
I don't think we disagree, we're just looking at it differently. Maybe while taking a closer look at the specifics of each game then you might agree there is quite a lot of variation, and each way only works under the right conditions.
Stealth bombers + a bit of navy makes water maps domination games pretty easy right? Alternatively straight to powerful naval units like frigates-destroyers and own the seas. I don't play those games, not my cup of tea, but given the state of the naval AI I don't see a problem with getting those wins.