An interesting facet here.
It seems that this is two FTCA claims, filed in 2023 and 2024, during the Biden Administration.
As noted above, six months after a claim is filed, the claimant has the option of treating it as "denied by operation of law." That is, they can file suit. Like a Motion for New Trial in Texas is deemed denied after 75 days. However, unlike Texas MNT practice, that apparently is only an option, it doesn't force the filing of suit. The claimant can wait until the claim is actually denied to file suit.
So, the Biden DOJ could have denied the claims, forcing Trump to file suit. Similarly, the Trump DOJ has had ample time to grant or deny the claims. The Biden DOJ obviously should have denied the claims. It's a mystery why the Trump DOJ didn't do so quietly and in early 2025. Now the cat is out of the bag.
Trump doesn't want to file suit, because he will lose.