Only competition law can force them to open up properly.
Lol repeating Apple marketing in plain sight.
There is no garden, its a prison.
"Garden" is marketing jargon to beautify the reality of things.
Think of the word Garden, fruits, vegetables, flowers. That word was specifically chosen by their marketing team for a reason.
The reality is that Apple has dictator-style control and the ability to ban/punish people with no oversight. "Garden"...yeah words paint prettier pictures than reality if you let them.
Also side note: I suggest you read this post/response I posted a while a ago: https://news.ycombinator.com/item?id=39349288
However, the environment in which Apple operates is defined by anti-circumvention. Yes you can legally jailbreak your phone. You can't legally run an R&D program to circumvent part-pairing, or develop a business around aftermarket modification of phones to modify or replace the boot ROM or other components. There's a reason third-party aftermarket modification of vehicles used to be a much bigger market and it's not the technological feasibility of developing modifications. The same is true of consumer electronics