Ignorance!
Armored King especially has grown into his own with the later games. Many would claim the same from Anna.
I certainly don't think Armor King or Anna are worthless clones, but I do think that their respective styles already have a strong form of representation in Tekken 7 due to the presence of their counterparts. That being that case, I'm more interested in the characters who have more unique styles that aren't currently represented in the game, like Lei, Julia,
Regardless, you should all prepare to accept the current roster as being the final roster (plus two guest characters). It's possible that they'll have surprises hidden in the game at launch, and it's possible that they'll add more characters outside of the season pass, but neither of those possibilities have evidence to directly support them. They simply haven't been ruled out either.
Oh, and feel free to keep requesting characters you feel are missing, but don't be jackasses about it. Almost every Tekken/Harada post on twitter is filled with jackasses. It's a bad look.