My take:
First, there's nothing jaw dropping here. I've written some headlines in my life and this headline — "For Kraft, Brady and Belichick, is this the beginning of the end?" -- is more typical for an opinion than a news story. Here, it speaks to the fact that there really is no "x-happened" headline, which is the foundation of actual news.*
What the story does is soothe one very large group of fans (non-Patriots) and agitate others (us).
Fans around the country will read that headline and say "god, I hope so."
As a Patriots fan reading the story, my main feeling is "well, of course, we all know this will end some day and it's going to suck."
If that's what's happening here, there's never been a guarantee it will be pretty. The coming together of Brady-Belichick has been something that can't be duplicated -- two fiercely competitive men, best ever (arguably) at what they do, working their tails off and sublimating ego (and in Brady's case, I'd say base income) for the glory of winning.
Really, the one thing I get from this -- other than the dread that the end of this amazing run will come eventually -- is ... there's really nothing unique happening here, not in the bigger picture of the NFL, with it's fiery personalities and fierce competitiveness. It's only a story because, well .. it's the Patriots.
*The one thing that I could see getting traction: It says Kraft stood by Brady during deflategate "even though many staffers in the building believed there was merit in the allegation." Um, really? Kind of a throw away line that comes with some responsibility for accuracy, and makes you wonder why neither editors nor headline writers jumped on that for more. ....