It is clickbait. Tesla hasn't "recalled" 2M vehicles, they're pushing a software patch. "Recall" is specifically jargon. It's a regulatory action. However (and this is precisely why this headline is clickbait) it has an alternate, more common meaning to the general population, which is "your car has a defective part, is unreliable, and needs to be brought in to have that part replaced."
This is a "recall" the same way your code needs a "recall" when you find a bug. It's not.
You not being aware of the use of the term doesn’t mean it’s clickbait. All a recall means is that the NHTSA is using its legal authority to have Tesla ensure that all vehicles with a safety concern are fixed. If Tesla can ship an update that easily, they can send the NHTSA a report showing each VIN having been verified as having the right firmware version.
This is a "recall" the same way your code needs a "recall" when you find a bug. It's not.