If my operating system has a rootkit or APT I am boned. If twitter is hacked I couldn't give a fuck, it doesn't affect my equipment or how I use my computers.
However, You're completely arguing a point that is different from what the entire discussion is about. We're talking about proprietary control points. The iOS operating system is proprietary and the App store dictates who and who can't publish on it.
The same is the case with Twitter. It has APIs and they control who and who can't use them to make apps.
Both companies have invited developers to make apps. Both companies have benefited from having those apps make their services/devices useful.
The fact that if you do not control the product you do not actually own the product.
You never buy a Apple device, you pay alot of money for the permission to use the device temporarily
That is distasteful to many people.
>That’s their key differentiator that enabled a lot of their advantages.
This is complete rubbish, there is no reason Apple could not have the App Store, have all the their "advantages" and by default lock their OS down, but still have a path for people that choose to break out of the wall garden, to do so.