The crowdloan rewards were discontinued with the passing of CP84 (passed unanimously) and contributors were given 60 days notice to claim their rewards, in addition to the two years that claiming was available.
After the proposal passed, this deadline was announced extensively across all our channels (Twitter, Discord, Telegram) on a weekly basis to remind people to claim.
Centrifuge is a DAO. It is not a company so does not have a legal base jurisdiction. All changes within the protocol is decided upon by the CFG token holders via governance.
Every project had their own process of distributing the crowdloan rewards - there were many projects that required manual claiming (Moonbeam, Parallel, Interlay, Kintsugi etc.).