Cam is on video audibling out of plays because the linebackers or defensive fronts knew the pass play that his offense was running when he was in Carolina and changed to a better play. There’s game clips of that so it seems just outright false that he doesn’t know QB basics or can’t read defenses for as long as he’s been a starting QB with winning seasons.
The article mentions NE’s offense isn’t what Cam’s been used to so the context is about NE offense is different than his past offenses, not that he doesn’t know how to read defenses. The writeup doesn’t look like it included any questions that were asked for those responses or even the full response but just excerpts that followed their mention of how NE’s offense is different than what he’s used to.
If there’s already an opinion about Cam the quote will be interpreted negatively about his intellect, but the overall context looks like the plays in NE’s playbook centers around identifying defensive looks and he wasn’t used to doing so in his past offense’s playbook. I don’t see how explaining that a primary responsibility in one offense wasn’t required in the past offenses means he doesn’t know how to do it