It definitely is that simple. It's up to an individual to decide if engaging with Apple either as a customer or dev will be right for the individual. When one engages in a relationship with Apple they have to take the positives and negatives into account. One of the things about engaging with Apple in the US as a development partner with respect to the iphone is the knowledge the ios app store belongs to Apple. And with that knowledge the developer is bound by Apples rules. And also weighing other distribution channels, similar to Amazon or the Wall Street Journal.It’s not always that simple, especially when there is a company controlling a significant portion of a market (as Apple does with the mobile OS market in the United States) and restricts/blocks competition in that market (as Apple does with iOS app store/distribution in the United States). A mobile app developer saying they won’t do business with Apple has to throw away around 58% (according to Statcounter) of the market in the United States.
Epic found out about this the hard way when they goaded apple into kicking them out of the ios app store and then sued them...ultimately losing every legal point except for one.