Well let's see ... First - No. I guess right now it doesn't matter, except I'm curious ...
Second - In 3.6 billion years, if anyone's around, they might care, as it could mean the possibility of debris blasting out, and I don't know about you, but me, I'd like a little notice if there's suddenly going to be large chunks of Real Estate floating around our system for my planet to run into.
Third - And once again I don't know about you, but I hope I've got descendants floating around, in which case, again, **If**,**if**, there's going to be large chunks of Real Estate floating around, I'd Still like there to be 3.6 billion years to plan for it, so we can move out of the system or whatever they come up with, and/or possibly just be ready to watch it, like when those comets hit, what was it? Venus?
And besides, if it's just going to create rings, how often is it you get to see rings being formed around a planet? Be nice to have a little prep time.