gotten in due to high requests and his design is an amalgamation of his Super Metroid and Other M look.
is a new breakout Nintendo character that's been around since 2012. She's simply not comparable to Corrin's inclusion in Smash Wii U.
Pretty much all Splatoon content, including
, are based off Splatoon 1, a 2015 Wii U game, and the lack of anything Splatoon 2 is pretty telling.
and
are old-school characters representing an iconic, classic franchise that's been around since the NES era.
isn't even the latest lord anymore and
and
are self-explanatory.
So really, what "advertisement characters" are there? This argument would make sense if we've gotten characters like Spring Man and Rex, (at the time) unproven characters who would
solely get in back in 2015/2016 because they had an upcoming new game. Even Pokemon itself would get a newcomer due to how much of a crowd-pleaser the franchise is.