They don't develop those APIs out of the goodness of their heart - it's a lock in strategy.
They've made it practically impossible to write native cross platform code that runs on IOS, and they've everything they can (within political limits) to prevent web apps from being able to compete with native apps.
They've made it practically impossible to write native cross platform code that runs on IOS, and they've everything they can (within political limits) to prevent web apps from being able to compete with native apps.