I suppose they figured it would cause a lot of upset if they didn't provide a grace period to accept the new terms (and clearly that would have been the case, b

I suppose they figured it would cause a lot of upset if they didn't provide a grace period to accept the new terms (and clearly that would have been the case, based on the reaction so far). Consider that people rely on WhatsApp for essential communication with family and colleagues and so on, and they may not have time to properly review the new terms if they were rolled out with no grace period.