Crypto Industry’s Sanctions Woes on Full Display in MetaMask’s Venezuela Hiccup
coindesk.com
coindesk.com
so, getting blocked by them doesn't mean that your funds are innacessible, it's just an inconvenience.
of course, if they wanted to be evil they can just publish a new version of metamask that steals your private keys. you need a different wallet if you want to avoid that.