The WSJ is owned by the Murdochs. If anything, you should hope they spin off the news business, and keep the opinion side. Sadly, I suspect they acquired the former to lend an air of legitimacy to the latter.
I don't believe that is the case. I have been reading the WSJ since the 1980's, before it was acquired by Murdoch, and the Op-Ed section back then was already way to the right of most mainstream media, and the WSJ news gathering organization. I don't think that Murdoch has improved the quality of the WSJ, but he has not changed Op-Ed editing.