Do you really think quick culture games "deserve" to fill any EQM slot?
Or APs? Or PAs?
I just looked up the one accepted deity gauntlet.
It was completed by more players, by most in a similar or even less time than major21, and -of course- VC was quick culture. Each one of our so-called "cheesy 50 turns" took thrice or more time than any of your 150 turn culture gauntlet. (But probably more thoughts, imho...)
As it is now, most or all EQM slots can be filled with shorter and easier games than GM21. As a matter of fact, I completed the whole Deity RoA in a time roughly the same as one or two GM21 runs. This could be done with many other slots as well, it just would be more boring.
To answer your question: This major should not only count as EQM gauntlet, but for all events/appropriate slots. I see no reason to ban non-ancient starts at all, especially as long as APs, PAs, quick culture games, tiny maps, continent maps with all civs on one continent are allowed - just to name a few. The cheese list can and will go on forever; I for instance wonder if diplo and culture should count at all outside the special all-vcs-event...
Um... You can't ignore the fact GM21 required no teching, no diplomacy, and no city specialization/building strategy - you spent a few turns building factories and barracks, and then you built tanks and then you attacked everything. You didn't have to strategically prioritize worker/military/happy/science techs or AI trading since you had all that you needed already.
So basically GM21 eliminated every aspect of civ play except military unit movement and warfare tactics.
Now I agree with you that this isn't much different from an Ancient chariot rush, as Lexad pointed out in the thread. But at least in an Ancient start, you can't trade maps as soon as you meet a civ, you don't start with 2 explorers, and you can't simply regenerate until you have all your strategic resources nearby. And most importantly, your economy can crash on Ancient if you go all out military production. In GM21, it couldn't.
As to gameplay time taken in comparison with a culture victory, well I don't believe you can compare them. GM21, you have 30+ units to move, each requires a thought. Culture you have ~6 cities. You're probably right you need more thought for GM21, considering the massive number of units, but you need better thought in a culture game - you only have 6 cities - they all have to be optimized for their purpose, and they have different purposes. A bad decision or two may cost you a few tanks and a few spots in the GM21 standings, but it's not going to mean you pop a GS instead of a GA and lose the entire culture game because somebody launched 2 turns before your next GA.
I submitted for both GM21 and the deity culture gauntlet. If you measure the "ease" of a gauntlet by the ratio of attempts vs. wins, I can tell you GM21 was far easier, and I'm not a warmonger. It may have required equivalent skill to take the #1 slot in both guantlets, but it didn't just to get on the table, for me anyway.
I'll think I'll let jesusin answer whether quick culture belongs in EQM, assuming he reads this thread.