Why does this appear in our Announcements? When we lose, it's obvious, I should think.
Do we really need to be told when we blow it? That's like rubbing our noses in it. A bit Nelson Muntz styled "Ha ha!"
Seriously, what are the Developers thinking? How do they think this makes us feel? Especially after a hard fight where we did all we could to win and still failed?
I'm not entirely sure about the specifics or mechanics of these "nifty tips" so I'm making a guess here.
I believe if you go to your options you can change your tutorial tips from "All" to "Critical Only". You might give that a try and see if it lessens the frequency of repetition on those most obvious tips.