of course. when Hashem sees that our tefillos are lax because we’re doing well, He sends us “reminders” that really everything is in His hands and not ours. nothing is kochi v’otzem adi, and when we think that way and become too comfy with our lives, Hashem needs to let us know Who’s in charge.
the tragedy in Mumbai brought Jews of every stripe together. and it created ahavas Yisroel. it inspired many women to light Shabbos candles for the first time. obviously the ideal thing is to be able to have all this WITHOUT a tragedy calling for it, bimheira biyameinu.