A speaker may avoid explicitly naming a revered person to suggest that the person's name is too exalted for ordinary mention. The text describes this as suggesting reverential protection from the speaker’s tongue. This is a rhetorical effect, not a claim that naming such a person is inherently improper.
أو إيهام صونه عن لسانك تعظيمًا له
Or to suggest, out of reverence, that one refrains from uttering the person's name.
The effect requires an audience who can identify the intended person. In a gathering already discussing a respected scholar, listing achievements without repeatedly naming him might carry this tone. Merely removing a name, in the absence of such context, does not automatically convey reverence.