No, that’s not the entire story. Epic lawsuit says what they want is to have its own store that they can run on the Apple’s devices, and offer apps from other developers there as well. But I think the reality with Epic is that they really just wanted to pay a lower percentage to Apple and unfortunately Apple was not budging. Just like Google didn’t budge. They also needed some PR because their big volume app is no longer generating the revenue it once did, so this court case and tweeting that proceeded it, provided them a way to at least seem relevant for longer, and maybe help bring in additional revenue.
I’m guessing you’ve never either worked for a retailer or a manufacturer of products sold to retail, to understand that every reseller of product marks up a manufacturer’s wholesale price to cover all sorts of costs. And manufacturer’s don’t get a say in what that markup is. If a Walmart wants to sell a product for a loss, because it will get more people in the door, that’s their right. They can also mark the product up 35%, 50%, 65%, whatever they want that allows them to sell as many products as they can while being competitive in the market. Epic has made tons of money from sales of their apps through the App Store, so there is zero argument that they need a court to provide relief from Apple’s onerous (standard in the market) payment expectations.