Once again, why do people have an hard time to understand the Point of View of an Insiders?
They CANT tell you EXACTLY or SHOW proof that it's fake because that would Break the relationship of trust that they have with their sources, that sometimes took years to build up.
Heck, most of them made comment, like the VG247 guy, Spawn-Wave and others saying that the problem is that Incineroar is not here at all or the lack of Pokémon rep is weird.
They can't talk more about others characters because those characters would probably break it and be easy to trace back to their sources. Heck, most of them probably got the autorization to talk about Incineroar from their sources after Vergeben's got his time to shine.
Like, legit, anyone who ever made some basic journalism knows what's up. It's not like there one people saying it's fake, it's literally every insiders with some Smash info, that are usually VERY trustworthy who says so-
Let's not diss them completely, and be comprehensive too- that's why team "Hmmm" is best bet.