Had he said that this was an attack on western civilization/values/activities/way-of-life I would agree with him.
Yeah. That kind of observation would have made for a really insightful and original quote. Thanks Bono, you've just said what absolutely everyone else has already said.
Where was he when Charlie Hebdo was attacked?
I've no idea. Maybe no-one was looking for a comment off him at the time, because, as we've already all agreed, it wasn't about him.
What is about him is that he was scheduled to have a gig in Paris directly after a similar gig had ended tragically and violently. So people wanted to know whether he intended going ahead, and what he had to say about it. So he obliged and naturally he's going to address things within a personal context that he has any qualification to speak on. Otherwise he's just repeating what hundreds have said before him.
One wonders what you'd have had to say if he'd said "Don't ask me. I couldn't possibly comment, this has nothing to do with me, or the music industry, and personally, I just can't relate to that."