It's not a strawman. They were specifically answering your question of "Why would it be illegal?" and not delving into the specifics of what the law would look like. And the answer they gave is that it's bad for a manufacturer to retain control like that of a device you own. Also that it's a consumer rights issue, basic enough that nobody should need to ask why.
I guess the shouldn't have used the word "full" but that's pretty picky.
It looks like a pretty reasonable argument to me. They didn't discuss the basis but "consumer protection" seems to me to be sufficient basis. For impacts, I'm not sure what you're looking for; without being an expert it's hard to go beyond "companies stop doing that". But either way, replies don't have to answer every question you asked.
I guess the shouldn't have used the word "full" but that's pretty picky.
It looks like a pretty reasonable argument to me. They didn't discuss the basis but "consumer protection" seems to me to be sufficient basis. For impacts, I'm not sure what you're looking for; without being an expert it's hard to go beyond "companies stop doing that". But either way, replies don't have to answer every question you asked.