I can’t say I’m surprised that the Journal’s edit page would decline to do so—disappointed, yes. We’ve seen many times how ideology trumps the truth there. As Jonathan Chait wrote back in May, when Klein’s paper came out (and the WSJ declined to run an op-ed on it):
I think they genuinely deserve credit for taking into account the objections and making the effort to correct them. The interesting question is whether the Wall Street Journal could be shamed into publishing another op-ed correcting the first one. Probably not, but you never know.
Now we do know, and that, and the contrast with how honestly Klein grappled with his findings, says a lot about what you need to know about The Wall Street Journal editorial page.