At a previous company, when I was developing an iOS app, it was difficult to impress upon the business people that there was a very real risk of Apple simply cutting us off. (When Apple wanted to compete in our space, or they cut a deal with a competitor of ours, or they came up with some new idea about "security" or "experience", or simply Kafkaesque random bureaucratic whim with no appeal.)

I then had to explain why "the market" hadn't already corrected that, and why regulators hadn't.

Separate from my professional career, one of the more personal reasons that the reality of the iron-fisted mad-king Apple iOS app store made me sad is... I had hard-won skills at some tricky iOS things, and it would've been very tempting to moonlight on some creative apps that did something new, while also generating side income. But, for this and other Apple developer-hostile reasons, I'd end up aggravated in my spare time, and always with the risk that at some point Apple will stab me in the back. That's no way to spend one's spare time refreshing from the real job.