[freedomben]

The grievances have been simmering, but anecdotally at least I haven't known a single developer who is unhappy about it enough to actually switch. Also programming languages/frameworks/platforms are highly sticky. Apple was very smart to make their language/framework non-cross platform (generally speaking. By that I mean, try finding jobs doing Android or even web development in Objective C or Swift. I know it's possible but it's not very practical) and unique to their system.

At the end of the day, developers are users first and foremost, and as users they are thrilled with Apple. Things would have to get pretty damn bad before Apple would need to worry about losing developers.