It just feels weird to sacrifice game quality for memes.
Jiggs brings very little to the table.
I've said this before but outside of "just being here" it hasn't gotten much of anything over the years.
neither in Smash or in Pokemon.
-Not in subspace
- Not in any Smash 4 cutscene movie trailer things
- No megas
- No z moves
- No aloan forms
Just a new typing.
It's not like the game's quality automatically declines just because Jigglypuff is in, she might not be relevant, but she was part of Smash's core cast, and as a result has become a stable of the series. She actually has a pretty strong fanbase in the Smash community too, hence all the #buffpuff shouts, and she still brings a unique playstyle to the table.
I also hate this line of thought where a character
has to be able to promote the most recent game in its series or it's considered a waste of space. Like, why is a character a bad addition just because it doesn't bring extra money to Nintendo? Why in the world does that matter to us fans? It's not like all veterans are being used to market the game either, it doesn't matter if there are youngers generations who don't quite get it. Yes, I get that her inclusion hasn't aged that well, but she was once one of the faces of the series during the absolute peak of its hype, and I think with how many newcomers that depend on recency these days she will hardly be the last veteran to end up being irrelevant but still stick around regardless.
It's not like Jigglypuff takes any other Pokémon's spot either, there's a reason she's always low priority: she's incredibly easy to make. It's not Jigglypuff or some other Pokémon, it's Jigglypuff or no one (or a clone at best).