I guess it depends what's being said.
To take the "Delusional Roadmap" example above, the only thing that is every going to resolve this, is the quiet gossipy whispers.
e.g. Possible answers
1) No it's not - you're fired.
2) Is it? I was told it wasn't. Could you jot down some notes I could raise?
3) Yes, sorry - we all know what, but we have to go along with it to get budget, so we're not all fired
4) I know it looks a stretch, but somebody's been working on x, and y's about to be signed.
Any conversation or response, gives you some context - to better understand/accept that slide that just left you spluttering, speechless and outraged.