Seems absurdly high for a first name only autograph of a young woman who will likely be around for decades to come.
Topps and other card companies have been doing this since the dawn of card collecting. You created a limited run of something, in this case an autographed card, and then you use that to incentivize people buying the packs because they have a chance to pull a 1/1 or 1/5 or 1/10 card.
Since its 1/low number, people can ask pretty much whatever they want, which is what you see a lot of on ebay.. it doesn't necessarily mean the card is worth that much. It all comes down to what someone is willing to pay.
It's 1/10 until the next year when they do the next series. Then they have another ten. Rinse and repeat every year. They do the same thing with historical figures, sports, etc.
I don't know a single serious autograph collector that falls for this junk. Probably more aimed at card collectors. And even at that, the asking prices are typically absurd.