Maybe. But, unless they find the wreckage of that plane, and given the depth of the waters and the size of the debris field that seems unlikely, this will be the stuff of an endless supply of conspiracy theories. And, given the fact that there was a bomb threat for this very flight just days before, that is only going to be an accelerant for the tin-foil hat crowd.
Now you're spreading rumors. The threat was not against "this very flight." The threat was several days earlier, against a specific flight originating in Buenos Aires.
The data available do not suggest a bomb so much as they suggest a weather-related breakup of some sort.