Why would you think that? Do you not believe Super Nova happen?
Have we ever successfully predicted one, lined up all our telescopes and watched one begin to unfold? No. We haven't. This time might be the first time, but then again, how do we know?
A star's lifecycle takes billions of years. We think we know what will happen in the next 10 or 20? Seriously??
If it does go supernova, will it really appear as a second sun? Or as a bright star? Can you say "hype the story"?
This is just crappy reporting of some guy's opinion about something that might happen. It's right up there with the recent "California superstorm" story about the storm that will last 40 days and deposit 10 feet of water on California. Uhhhhhhhh. Yeah. That could happen. I suppose.