After I wrote my previous reply to you, I realized that I don't really know why we call anything good news or bad news, so I may very well be wrong when I claimed that late great filter is not bad news, or that it's more rational to not call it bad news.

That aside, ordinary decision theory has obvious flaws. (See here for the latest example.) Given human limitations, we may not be able to get ourselves unstuck, but we should at least recognize that it's less than ideal to be stuck this way.