If the joint looks as good as the picture appears, I wouldn't call it out as a defect. I usually mention to 'monitor' over time and age.
If the joint is mortared shut, I call it out.
If it is caulked, I usually leave it alone, depending on what it looks like.
On older brick/lintel set-ups where deterioration has started, lintel is angled inward, bricks are bowed out, etc. I'll usually recommend customer speak with mason and consider caulking joint to avoid further water run-in/deterioration until repair/replacement takes place.
It has become more and more common for bricky's to caulk that joint, right or wrong.

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Accurate Inspections & Consulting, Inc.
773/844-4AIC
Markus Keller