I don't think it's a foregone conclusion that Isaacson is "seeking more attention."

I think the attention-people (media) are begging for his early words and competing intensely for his time/words. The publisher may also have some stipulation in Isaacson's contract about how available he is to make himself to interviews with media outlets. Not saying I have evidence that's the way it's going down - just that such factors are at least as arguable as a hypothesis that Isaacson is an attention-monger.