But all of that is moot because whatever the law says, it's really about getting Apple to replace their proprietary connector with USB C. The goal is to achieve that by any means necessary.
That's a silly preconception as the new standard charging port isn't limited to mobile phones.
Apparently you missed the part that says "whatever the law says."
Imagine a poll with two multiple choice questions:
1. Do think the law is a good idea?
a. yes
b. no
c. don't care
2. Do you own an iPhone?
a. yes
b. no
c. what's an iPhone
Obviously I can't prove it without actually putting the poll to a large and appropriate sample of people, but my belief is that there would be a very large correlation between the people that answered a to the first question and the people that answered a to the second question.
Whatever may or may not be written into the law today, I believe that the initial motivation for it was entirely, 100% due to the proprietary connector on iPhones. Moreover, the wide support that the law has received from the public comes
mostly (but not entirely) from users of iPhones. Put another way, if Apple was already putting USB C connectors on their phones then nobody would have had any interest in proposing the law in the first place. Whatever verbiage it happens to contain today is a poor indicator of the original motivation or the public support for it.
As I said, I can't prove it, but I do believe it.