Clickbait title. There was a story recently that said that all of the devices had flaws with MAC address randomization. There's literally nothing special about the iPhone here.
That just looks like a bullshit justification for having a clickbait title. It's not like this title will make Apple pay any more attention to the issue. All it does is try to elicit pageviews from other people, while simultaneously misleading them (because the title implies it's a problem unique to iPhone 7, and not everybody is going to read the whole article).