Hypersmurf
Moderatarrrrh...
The ambiguous use of "using a power", and "attack" in the PHB, not to mention the different entries on OA where two say "power", and the other says "attack" (which could mean attack power, or could mean attacks that result because of a power)...
... or could mean a power that isn't an attack; Wall of Fog, for example, despite being a Utility power with no Attack line, is a power with an Attack Type of Area, and falls into the category of "Area Attack".
Which is why I see a possible interpretation of p268's "making an area attack" to mean "using an area power", because any area power is a power with an Attack Type of Area, which makes it an Area Attack, even if it isn't an attack. And that reading would make p268 consistent with p271 and p290.
CustServ disagree with that reading, and consider "make an area attack" to be an entirely separate circumstance to "use an area power".
-Hyp.