Don’t think so. Almost every third party app does downloading right except Apple’s. It’s like they don’t even try to recover at all. You can’t resume updates - only on Apple related software. I remember spending 5 days trying to update to Mojave because the update kept failing.
What amazes me about Apple is that they have hardware and operating system that are really great. Every other software I have used that is made by them is buggy beyond belief. Have you tried Apple TV. I stopped using it not because of lack of content but was so unreliable to the extent that you feel like it says “fuck you”. You have one packet loss, your download is doomed. Starting is takes multiple seconds. Try to search something, the UI will freeze. I love Apple products and I hope they fix their services.
Your point of view makes sense but removing the documentation how to build and deploy the parts of the code they open sourced before shows an intent that they don't want people using it. They could just announce they are no longer open source and put the docs on Readme and move on. But putting the docs down silently is breaking the promise that was the tagline of their product.