Pretty much hit the nail on the head, althought I can not only agree on Ashley fans not being a problem, but I also think that they deserve a lot more credit then they are usually given.
Ashley has no special importance within the Ware series and is only getting so much stuff recently because her fans are actually vocal about the fact that the like her, which is amazing, because prior to this forum there no Wario community to speak off for years and the lack of a vocal fanbase hasn't done the Wario series at large any favors, Ashley had things turned around for her because people have shown investment in her, which I find to be applaudable and an example that could lead the Wario series into a better future, once more people show that they care (and the forum is already doing a good job at building a community, but that stuff takes time).
I understand where BooDestroyer is coming from, it can sometimes be easy to believe that nobody but Ashley is cared about and whenever I see some new only-Ashley thing announced I can't help but feel a little sad that nobody else from Ware's cast get's to be a part of it, because it shows bis irrelevant they are nowadays.
The thing is thought, if it weren't for her fans being vocal Ashley would be stuck in that exact same situation and would that really be better? I don't think so.
Don't feel bad for the other Wario characters, once people know who Ashley is people will know who the others will be and soon they will be in other things...or not, but still at least they know who Ashley is, hopefully they learned her name.