David Sirlon's website is a good read for I think for fighting game players. I think I quoted it in last year's thread. He has a free book online that everyone can read here for our genre.
http://www.sirlin.net/ptw
I think another reason why customs failed is because Mii Fighters/Palutena and Custom Moves were lumped together under title even though they are different besides sharing the "custom moves" name. And since thry were lumped together, the whole idea as a whole fell through.
Not to mention the knee-jerk/scrub reactions to custom Villager, Small Mii Brawler Helicopter Kick that the then new community was afraid of and still leaves an unreal but lasting impact on thr community.
I remember seeing Eventhubs posting an article shortly after the Evo customs event where notable players and Mew2King said to ban custom Villager or just that special because he deemed it too strong; and I think the community just went along with it since he was a veteran melee, brawl, and project m player and did not question his opinion in the beginnings of Smash 4.
Link:
https://www.google.com/url?sa=t&sou...gg0MAI&usg=AFQjCNGSKyoBu67qjdmzoFMBeYorPn7Exg
Then there was the 2 stock tourney standard that the US strongly pushed along with trying to grow Smash 4 as an Esport.
I believe TO's and the small group that makes up the SoCal smash committee listened to the vocal players who complained in person at their events, in twitch chat, online, and not to mention the notable players within the committee itself and the others that they may have talked too.
The last that I recalled looking at the list of names, there were: commentators, TO's, and notable players. I think they might share a common bias since they originally came from the melee/brawl scene.
Then there was Wrath and other Sonic players who popularized timeouts and campy strategies which twitch chat and players called scrubby, boring, not exciting, unbeatable (I'm exaggerating now), time waster, tourney extender, ruined Smash 4 as a spectator sport, and etc.
Which is why I think that Duck Hunt, Customs, and 3 stocks were neglected.
I think they paid too mich attention to the vocal complaints thrown at them from every direction similar to maybe how Smash 4's balance patch team may have initially reacted to Little Mac's For Glory dominance on release.
That is, until videos started popping up showing how to defeat Little Mac, but I think those videos came a bit too late since by around the time I saw them pop up, Little Mac's Jolt Haymaker aerial range was nerfed.
I also think that the whoever's decision it was to believe or maybe think from a casual gamer prospective that a flat stage with no items would provide an even advantage to entire cast (learned that one from TvTropes today).
Maybe it might have stemmed from the belief that a portiom of casual players defaulted to final destination in melee/brawl when they felt like playing serious as far as skill is concerned without items or other players in a 1v1 setting. I have also heard a suggestion that maybe Smash 4 got final destination stages in part to data collected from brawl's online play where allegedly a favorable amount of players preferred playing on final destination than any other stage.
EDIT: I also think reactions to Sonic timeout and camping are scrubby according to Tv Tropes definition.
https://www.google.com/url?sa=t&sou...gglMAA&usg=AFQjCNEQeliDkPTGGYjPeRjrbWw_I-PLkQ