I don't think you can. But I wouldn't call it misleading. It presents you with the 2 real options you have: Gain a Gold, or gain nothing. It's doing part of the work you'd have to do in an IRL game (remembering which cards where gained), and not communicating to you why there is this 'Gain nothing' option.
I'd say it could be called misleading (even though it would be technically correct) when it apparently gave you the option to gain a Will-O'-Wisp, and if you wanted to take it, and it said "Fooled you, you can't gain it!".