I think that's the right degree of seriousness to give it. Just keep your eyes and ears open for irregularities around re-requesting something we already have.
"Hunnh? What just happened?!? ... If it happens again, I'll watch more closely and take notes."
What I expect from the Treasure Chest is that if I get the request, it turns green right away.
That's what I see every time, now that I'm watching for it.
Some things need a refresh to show up, like "tickets remaining".
Maybe my browser just no longer likes "F5" for reloading a page.
