Actually not sarcastic. Overstated though, yes (my biggest personal problem with messageboards is that I post in a hurry and sometimes say things in a pretty goofy way).
But here's my explanation:
My daughter likes Dominion (although we haven't played in a few months, so much going on)
I hadn't really thought about the implications of the card name until she played her first Cornucopia game and we played with Tournament. She really wanted to win a prize. She was 5. She didn't manage her deck very well, so it took her awhile.
She also really sees herself in the media she consumes. She prefers band with female singers. She prefers movies with female leads (and have you noticed how most kids' movies are dominated by male leads? random example: it took pixar 13 films to make one where the main character is female).
Many little girls her age are into the princess thing (not sure if it's big internationally or not, but in the US disney does a TON of branding of the 'disney princess' line), and so people are always talking about girls being princesses, calling them 'Princess', etc.
And we were playing Dominion, and I just had that 'huh' moment when it clicked in that Princess was a prize, like a bag of gold, a crown...
Yeah, I know it's a standard medieval storyline... but that doesn't mean I don't wince when I see it and generally aspire for media to have different storylines.
Dominion is generally pretty good about gender... females are depicted on cards (unlike Castle Panic for example). I know Donald has posted that he wanted ambiguous gender description (players described as "they" instead of "he") but that the publisher changed it.
Witch is one of her favorite cards to play with, even though she hates being cursed. I'm pretty sure it's because she wants to buy a powerful female card.