Really? Is it worth calling someone out over a typo in a common expression?
Yes. It is.
Of course we all knew what he meant. It doesn't make his wording any less incorrect. And, if enough people would point out when people incorrectly use the language, perhaps it will happen less often in the future.
As GaryPen said, yes, it is worth it. But it wasn't a typo; it was incorrect phrasing. If you're going to write something, understand what you are actually writing versus what you mean. What Hall wrote isn't what he meant, but unless someone points it out he might not ever learn.
The point he was trying to make...
I understand the point he was trying to make, but the point I'm trying to make is that he needs to learn to think about phrasing things so that they actually mean what he wants them to mean. It may not be extremely important in this forum, but it is certainly important elsewhere.
Look at the following sentences:
Currently all access is not logged.
Currently not all access is logged.
A lot of people will write the first sentence thinking that it means that some access is logged but not all of it, but that's not what it means. It means that no access is logged. The second sentence implies that some access is logged. Just moving the word "not" changed the meaning of the sentence.
Someone at work was sending information to an auditor that was phrased like the first sentence. The auditor then thought that no access was logged, which was not the case, and caused us grief until we explained (and provided evidence) that some access was logged. Of course, a better phrasing would be something like:
Currently some access is logged.
This example should tell you that proper phrasing is important.