If you look at that chart, yes. But it's confusing, because to the left of the oneworld equivalents it says:
And if you click that link, you get to a page which shows contrary information, saying that "Access to preferred or pre-reserved seating*" is avialable to Ruby, Sapphire, and Emerald. But that "*" footnote is:
Meanwhile, on the original page you linked, is claims that Preferred seats are "New". So is this a change in policy? I thought that back when they weren't called Preferred, that OW Sapphire could reserve exit rows?