I disagree, I think that's fine. Optimism is by definition, or at least in mine, a "hope" of things going the best possible way they could go, regardless of the situation.
Assuming things won't go well is the status quo of this thread, the WoW community and arguably of most people in general these days. Nothing wrong with being optimistic in such an otherwise pessimistic environment, whether or not it's "based" doesn't really matter imo, if everyone were on the pessimistic side this thread would be even worse off than it already is. Hoping for improvement is always fine, regardless of how dark things might seem or be.