SableWyvern
Hero
That being said, with a quick glance through the PHB, I don't see any powers that replicate the mechanic healing/inspiring word use ( a burst to target a single creature at range) so maybe you are onto something.
Yeah, looking through the Utility powers, Martyr's Blessing seems to be the only one that uses Burst without affecting everyone in the area of effect (and that is probably because it indirecly effects both a friendly and an enemy target), while plenty of powers that you would not expect to draw OAs are in fact listed as Ranged.
I may have to amend my stance and concede the point to Arbitrary on this one. P290 may in fact be a straightforward error.