That's like saying I should be able to turn off the lock icon in the browser address bar for HTTPS. Those spinning gears are there to tell the user that stuff is happening, even if they might not be aware that they requested something to happen. If you can turn it off, then every piece of malware is going to tell the user that they can't use the app unless they turn that off. And then they have no protection, which is the exact opposite thing that Apple wanted.
If you let anyone turn it off, then effectively you've let everyone turn it off.
Again. The gear is there to tell you something specific is going on but most people don't care about that. So of course it should be possible to turn it off for specific apps that you actually trust.
This is only an issue with Sandboxed apps not apps outside the app store. And it wasn't an issue until Yosemite.
Not sure why you keep insisting on arguing against something that isn't what is being suggested for a solution.
If you let anyone turn it off, then effectively you've let everyone turn it off.