So lets clear this up. What proof do you need in order for you to believe Apple did it intentionally?
First, it would need to be something that shows they actually did it intentionally. Saying that the fact that it hasn't been addressed is not proof of that, it only shows that it hasn't been addressed, not the reasons why that's the case or why it's there.
Second, and this is probably more important than the first, it would have to be something that shows a malicious conspiracy, as that is what is one of the bigger ideas that is consistently being tied to things of this nature. Again, nothing aside from theories and suppositions have shown it to be that.
All pretty straightforward and rational, and all that has been brought up before in one form or another in various different discussions about things of this nature even going back to early days of iOS 10, 9, 8, etc. where a number of the same people have participated as well.