also note there is no immutable database that stores the assets in an unhashed auditable format. so blink and they are gone when the group decides they had enough..
and not all them supposed 27k drop victims are participants in the "federated" multisig.. so they have no control
so yea.. just sham from start to finish
there are reasons blockchains became a thing and why unchained assets never worked out without the invention of blockchains being the immutable ledger
every taproot assets node is at minimum hosting the assets it is holding. but yes if all taproot assets nodes are deleted there is no way to recover the assets.
Same is true about the lightning network though - if you loose the DB of your LND you loose the value in your channels.
Taproot assets is not the only protocol using this approach with off-chain data. RGB uses the same concept only more complicated with more features.