To be honest I'm very impressed with the current developments in Metamask, because apart from the security features you mentioned, Metamask also has many new features such as swap and britge. I think in the near future there will be a lot of development by the metamask team.
This is indeed a good update and a big game changer, imagine being tagged as a scam wallet and freezes your crypto this can save a lot of users from falling into a fake wallet. What will happen though if your wallet being tagged as a scam? Are they going to release the crypto or seize it and airdrop it to the public?
No clear details on how they are going to this, though they should surrender the money into somewhere because it should not be their source of income, maybe they can return it to a legitimate victim of that scammer wallet, but doing this will require another work. Let’s see if Metamask is already prepared for this scenario, its good to be more secured though.