Then we disagree. Think about it, you're patching the OS so what you now have is an untested configuration, and you've replaced a working system to get there, on the theory that you might be preventing an unknown bug in the future.
In one instance the vendor even explicitly recommends disabling OS updates until they have tested them.
Not if the existing software functions properly. If there's a fix in it you need then sure, once the vendor has tested and approved it you should migrate.
I can't with this article... there's a very legitimate argument to be made here, but instead they are whining that stuff stopped working after an iOS update. If you're running something life-critical you do not install every single update the moment it comes out.
I think you're making a good case against an Internet enabled pacemaker ;-)