Although, oddly, on December 9th, she posted a vid that ENDED with a tarot card. Did the drop team not find a Tarot card at the park this last drop, when they were searching the wrong place?
Just a few random thoughts.
First of all, if there were anyplace I'd expect to find tarot cards lying around, it would be Golden Gate Park, though I'm sure it's changed a lot since I was last there.
Crowley had his own tarot deck designed by an artist with whom he worked closely. So there's a Crowley connection, but then the tarot has penetrated into most areas of occult research at this point. I even managed to find a connection to Pythagoras in a book I wrote on the tarot years ago. It's quite an ancient document. The Crowley deck is easily recognized by the uncommon oil painting quality of its artwork.
Current use of the tarot amounts to a kind of divination system used to tell "fortunes." In this regard, each card has a supposed meaning, though this is mediated by where it appears in what is called the "spread," a fixed, though varying, method of arranging a set number of cards. If any cards appear, it might be interesting to look up their meanings. I have a compendium of established meanings if anyone's interested.
The historical use of the deck, between its ancient use and its modern geomantic use, was to play a game closely akin to Pinochle. The "trump" suit of this game goes back to the actual trumps of the tarot deck.