[mehrdada]

You are changing the goalposts here. You don’t just want sideloading. You also want an easy way to do that at scale. However that’s not an obviously beneficial trade-off for the average user.

The point is as the device owner you have the ability to run code on your own device outside App Store without paying Apple. To be able to effectively distribute such code to the average iOS user who may not understand how to deploy unsigned app and the potential implications of it is a different story and one that you could argue is designed to protect the layperson against themselves (contrast this with users running random .exe from emails on Windows).