You're way overthinking it. It's a Nostr based interface for Taproot Assets. That's all.

Just as nodes or services etc generally have a REST or RPC interface so that you can use it remotely from another app, think of this as Nostr RPC for Shitcoins.

They haven't implied you need a token to use nostr or anything of that sort. The airdrop is a demo of how you can receive a shitcoin to your nostr address and send/swap it.