It's a problem for commercial software for end-users that isn't from the Mac App Store. Apple continues to tighten the leash, and it's approaching strangulation.
Please. I don't think you are replying to me in good faith. (Edit: on further reflection, I don't think I have anything useful to exchange with you. If you can't understand why this is a problem, there is nothing more we have to say to one another. Here's a hint, though: there is no regular menu item to do this. It's not discoverable at all, intentionally. Macs don't have a right-click button, and right-clicking or control clicking is not expected to be necessary to accomplish anything in macOS.)
I am...rather confused as to how you think people bring up context menus on macOS.
Unless you're being extremely pedantic and mean that I should call it "secondary-click" instead of "right-click", which wouldn't exactly be in the best of faith.
Apps that aren't distributed on the App Store are treated like second-class citizens on macOS. You can't even install them without having to chase down esoteric instructions.
If you don't understand why that would be an issue for a company that sells applications outside of the App Store, I don't know what to tell you.