I don't know what exactly was the main ground in that specific case, but there is a new attack from FATF (especially on crowdfunding process via self-hosted wallets/ p2p transactions, encrypted messengers):
https://www.fatf-gafi.org/en/publications/Methodsandtrends/crowdfunding-for-terrorism-financing.html (page 30)
and one more in the EU on self-hosted wallets as post-MiCA legislative process from the side of European Securities and Market Authority :
https://www.europarl.europa.eu/RegData/etudes/STUD/2023/740083/IPOL_STU(2023)740083_EN.pdf
(page 86)