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?
Can they do that? Because this is really dangerous, there is a big difference between tagging the owner of a wallet or an address as a potential scammer and having their coins frozen, this feature could easily be abused either by the ones implementing it or by malicious people which may argue they were scammed when it was not the case and get the wallet of an innocent person tagged and frozen, so we need to think about this twice as wallets providers are becoming more and more like banks, and I doubt this is something which will benefit us as a community.