That test doesn't sound simple or an ethical measure.
Apple taking away the right to repair is a company enforcing rules for a product be used in certain ways. On the other side facebook tries to get you to use the product in certain ways but rarely enforces it.
It's an ethical measure because I use it to measure whether something conforms to my ethical values. I take it to be axiomatic.
Likewise, it's a simple assessment for me to conduct. "Do I think this corporation enforces that their product or service be used in a certain specific way?" Unfortunately, I'm incapable of formalizing it any better than that. Yes, it's arbitrary, and not rational. I accept that. I don't advocate that anyone use this test, nor adopt my ethical positions; however, it is what I use, and I was primarily interested in sharing my perspective (which is both arbitrary and irrational).
Apple taking away the right to repair is a company enforcing rules for a product be used in certain ways. On the other side facebook tries to get you to use the product in certain ways but rarely enforces it.