This is a beautiful quote because it is an example of one industry's bad behavior leading to another industry's bad behavior, upon which the first industry then users the second's similarity to justify themselves. Cars only started doing this because phones made it normal. It's wrong in both cases.
It's similar to when Apple defended it's 30% store cut by claiming it's an "industry standard"... specifically, an industry standard that Apple established.
On the other hand, you can't sideload apps onto iOS devices. You HAVE to go through Apple. You either publish on the app store, or you don't have an iOS app. That's different. That's very different. That's antitrust-can't-happen-sooner different.
You just need to publish on the store in order to sell to other users.
You're probably referring to one of these things:
- You can install any app on your own device. This requires an Apple ID (but no $99 membership) and a certificate that Xcode automatically gets from Apple. The certificate is valid for 7 days, after which the app no longer launches. The bundle ID of the app also has to be globally unique.
- There's "enterprise" distribution that requires a developer ID and a certificate. Subject to terms of use. Apple can revoke it at any time. Sometimes Apple turns a blind eye to the misuse of this, but, again, it can and does revoke these certificates remotely disabling any apps signed with them.