In the tech world, security is mostly just a theater , it is used to push though unwanted and unpopular things, like access control, privacy invasion, etc...
All this signing business, leads to one party having the final say, and guess what, they are going to abuse that power...
I think it's just like in software in general: most software is bad, but it doesn't mean that all software is bad and unnecessary.
Most security is done badly, but it doesn't mean that security is unnecessary.
But I agree: TooBigTech has TooMuchPower.
Sacrifice principles for pragmatism and you lose both.
Because some people realised that insurance is the ultimate form of security? Why prevent failure when the consequences of failure can simply be offloaded to others?