Cool. Again, I find the drone war more than a little worrisome, so we're probably more-or-less on the same "side" here, but drones have not, as far as I know, been used for this sort of "destroy an entire large area kinda indiscriminately" attack—not because they couldn't be, but because that's not the usual tool the US happens to use for that
at this time, so if they did it it'd be with traditional aircraft (as in the linked article), and also because the drone war has, as far as I can tell, mostly not involved those sorts of strikes. Iraq is a big exception, but that's not because of the drone war—it's because of the
ordinary war that the US waged there.
The drone war has caused plenty of collateral damage regardless, of course. I'm just not sure characterizing it as carpet bombing is either accurate or helpful in pinpointing exactly what's uniquely bad about the drone war. In fact, I don't even think the people in charge of it are trying to cause widespread damage beyond their typically-very-limited targets—though lack of accountability ultimately is one of the bad things about it, along with normalizing that kind of extraterritorial violence in the first place, the everything-looks-like-a-nail factor (when all you've got is a Predator drone...), and so on.