Yes. First of all, it is not on topic. This is not a board about Smash. The only people who would complain about a pokemon in Smash are Smash fans who hate pokemon. So they need to go.

Second, by this logic, being glad that Incineroar is in Smash IS on topic, and should be encouraged.

Third, wanting another pokemon besides Incineroar to be in Smash is harmful to the unity of our fandom and it also means that you are actively harming the developers of the franchise you claim to love. Therefore, this type of trollish comment should also be banned.