Apple would get a huge benefit from integrating their UI code bases, Cocoa and Cocoa Touch. I and a lot of other developers dream about the day Apple will deliver a modern and saner Cocoa implemented with CALayers.
If that happens they'd have the resources needed to properly fix these issues that haunt us all.
They may have a lot of money in their bank accounts. But be sure, there aren't a lot of available developers capable of producing high quality objc code.
So yeah, they need all developers they already have in other to fix their code bases instead of throwing shiny new features just to capture the markets attention.
People say things like you said thinking that by just throwing money at developers problems automagically vanish. In reality, that's not how real engineering solutions are developed.
If that happens they'd have the resources needed to properly fix these issues that haunt us all.