It was observed that stETH was sent to the EL rewards vault instead of ETH (which means it cannot be automatically handled by the protocol). Thus the reimbursement is not yet finalized.
On-chain ops and NOM contributors will work on a planned proposal to remedy the issue so that the reimbursement can be completed. As it will require an on-chain DAO vote, we will try to line it up with a scheduled omnibus vote.