You can also go back thru time and look at other WaPo house editorials on foreign policy and they consistently take the NeoCon position and criticize Obama
Then there are numerous NeoCon columnists who are published at WaPo such as Krauthammer, Fred Barnes, Jennifer Rubin, George Will, Marc Theissen, Michael Gerson, etc.
You can also do google search of "Washington Post NeoCon".
The point being, this Wapo editorial criticizing Obama is not out of place at Wapo or significant.
George Will, by the way, was never a liberal or a leftist. Usually, it's that transition that is a huge part of the distinction. In saying this, Ronald Reagan would fit the description of a neo-con, but I don't know anyone who thinks of him as such. Many isolationist like to think that any conservative who favors a forward defense of the USA as a neo-con, but this is a spin, it seems to me, that's only accepted by those isolationist trying to imply less than stellar conservative credentials onto the supposed "neo-con."