USDC, BUSD these are not halal

recently the report on the backing of this dollar pegged stablecoins were published

In that reports it was mentioned that these stablecoins were not fully backed by cash rather than some percentage of cash and some percent of US treasury bills

From this forum i came to know that US treasury bills are not halal, So will the use of USDC and BUSD now be permissible as they are partially backed by US treasury bills?