To "point out" means to induce others to see what you see. Do you think that Harris's approach reliably induces people who don't already agree with him to see the ridiculousness that he sees?
Since the people he has to convince are religious believers, I think his approach is about as reliable as the 'nice' approach, which is to say it's almost completely worthless. However, it has other benefits that the nice approach doesn't have.
Unless I'm reading you wrong, those "other benefits" amount to no more than signaling tribal loyalties, at least in practical terms.
ETA: . . . and if that kind of behavior helps a tribe to grow, it does so for non-truth-tracking reasons, producing a tribe full of people who are there just because they like the company.
A monthly thread for posting rationality-related quotes you've seen recently (or had stored in your quotesfile for ages).