I don't think so. I think it's simply indicative that Israeli leadership was sure this step was necessary, and they chose to do it now because they had the best combination of means and opportunity to have success.
(Going on the assumption that the information in the article is correct, which I will freely admit could be completely wrong....)
Listen, don't get me wrong here, I don't trust Iran AT ALL, but you are still justifying bombing a foreign country based upon a POSSIBILITY that they can do something in the future, but were still a long way away.
Yes, it was easier now because their anti-aircraft capabilities were diminished, but even if they had another 6 months to rebuild them, I'd wager that our tech is still superior enough that getting past those defenses would not have been a huge issue (or we could have easily taken out the new defenses). This decision (according to the article) was made 9 months ago and Israel was going to do this raid anyways. We just ended up doing their "dirty work" for them.
And while yes, we are talking about keeping them from getting a nuke, but at the end of the day, Israel just assassinated
scientists, not combatants, Islamic terrorists, or generals. These are civilians. Maybe they are all in the "Death to America / Israel" crowd, but it would be the equivalent of an Islamic terrorist cell hunting down all of the Boeing scientists here in America that are working on a guidance system for a new missile. They are not the ones that were going to launch a nuke, even if they were the ones who created it.
I admit this is a relatively naive view of the world and that there is no black / white to this situation, I just don't like the direction of the world and how fast people are willing to justify things on possible threats versus eminent threats.