It's possible one of Israel's followers targeted him as a result of the Tweet. Then again, all Tweets (unless you lock your account) are publicly searchable. It is also conceivable thieves were searching Twitter, using Twitter search, seeking people who were traveling, and would be away from home for a number of days. Unless the thieves are caught, we'll probably never know.
Interesting thing is, it's almost impossible to use Twitter without revealing information that could make one vulnerable to attack, or at least a target. Many regular users of Twitter will reveal their commute times, property they have in their home, their location, real name, when they're at conferences, and even when they've arrived at the airport.
Will this change the way people use Twitter? Perhaps so, if these types of events become commonplace.
Then again, it's quite possible the entire episode is an unfortunate coincidence for Israel. Correlation, after all, doesn't always reveal causation.
If you'd like my technology and security observations throughout the day, please follow me on Twitter. (But feel free not to show up at my home, while I'm away).