I'm not arguing against any of that. I believe you. I also have no horse in this race because I don't care about Geno or Isaac.
All I was referring to was your quote. Which, to me, doesn't really do anything but show that actual organization and effort can produce results. Which is a positive thing. The opposite can happen without it; I honestly believe that there is a lukewarm-to-very-excited fanbase for ARMS that would love character representation, but they're too disorganized and have no real rallying cry, since the game isn't that old and the competitive scene died off. They lack the "hey, I know him!" hipster fans that Geno receives for being a long-forgotten but trendy character pick.
With ARMS, its the fact that the franchise is very new and the fact that its a fighting game. For people who have never played the game before, Spring Man is a tough sell, and he is the closest thing to a "face" for ARMS. You also have the fact that the fanbase is splintered by the fact that there are various female characters that certain fans gravitate towards and feel passionate about (namely Twintelle and Min Min).
A lot of times its not even organization. The Ashley fanbase for both pre-Brawl and post-Ultimate unveil exploded out of nowhere and similarily vanished in a puff of smoke due to misreading signals (during pre-Brawl it was Ashley's song being an update on the Dojo, and during the Ultimatte unveil it was Ashley's Assist Trophy missing as well as the upcoming release of WarioWare Gold).
There was this thing during pre-Brawl called "Sakurai's poll". This was not a poll, but rather Sakurai put out a ballot of sorts for only the Japanese fanbase (he did this after 64's release too). After it was closed, Sakurai published some of the entries people submitted on the Japanese website. People misinterpreted these publically released ballots as being indicative of a poll (upon retrospect, it should have been obvious considering no character exceeded six mentions on it). Geno did well on this (there were four publically published ballots where Geno was mentioned). Many believed characters who received mentions were much more likely (especially those that received multiple ones) than ones who received one or none. While many characters that received multiple mentions did get in, there were some that made it in that did not, and some that had multiple mentions (namely Ridley and Geno) did not get in.
I think this was the inception for the Geno Smash fanbase, and I am pretty sure Fatmanonice made mention of Geno's performance on the "poll" is what spurred him to action. After Brawl's release, Geno's fanbase greatly contracted and it was down to only those who truly liked the character. It did not regain fervency until a direct endorsement from Sakurai that he wanted to see him playable for a long time (which was months after the ballot ended).
All this being said, I am still EXTREMELY confident Geno is getting in as a playable character (most likely as DLC). Even if Vergeben's Square-Enix character is not Geno, I am still confident Geno will eventually be added as DLC for Ultimate. Geno has something that no other prospective character has: Sakurai's own public favor and stated intention for playable status.