Time is relative, absolutely (I had to do it, sorry). I guess in these articles they mean 10^77 years for an observer on earth. My understanding is if I was, somehow, waiting inside a black hole it would take much less time for me to observe the universe decaying. And if i'm not mistaken, then I wonder what does that mean for the universe as a whole. Maybe the question doesn't make sense when taking the whole universe as being the "observer"...