Make the argument that Gordon is an addict who will unlikely remain clean long enough to make an impact and the counter-argument is that Gordon's repeated opportunities are a sign that he's made enough progress in his recovery—despite steps backward that are expected for addicts early on—that he's continuing to earn more opportunities to play.
If you raise the point that Gordon is only earning these opportunities because he's a massive talent, then you can't argue that Gordon has greatly diminished as a performer. Unfortunately, when it comes to Gordon, they place wheels under the goalposts of their arguments against him.
And if your only argument is that Gordon is no longer as good as his reputation, then you're ignorant about the details of a player's fit with the scheme. You may also be in denial about the substance of Tom Brady's game, which is a rampant focal point of ignorance from a variety of perspectives due to the polarizing emotions attached to his career.
Most of all, Josh Gordon holds the mirror up to fans and analysts about the nature of talent and how little we understand this prized commodity despite our constant obsession over who has it, who lacks it, and can they somehow develop it.