What Database? Google Cloud Provider? blockchain security company?

Is the scheme they showed different from what is happening, or is the word decentralization not accurate? Isn’t there supposed to be no single point of failure?

I thought the vulnerability was in miniscript, which still appears to be in the development stage, but I was shocked after reading the reason for the hack.
Is the 200 million customers’ money? Are people serious about saving all this service?