I'm gonna cut the middle and put my guess at 180 EF4. There's not enough information yet to say higher end, but the damage is fairly substantial and I think a rating past 170 is more than likely.Hopefully NWS Norman and the QRT involved utilize the contextuals to push it higher, assuming these homes aren’t well built enough to push higher than 170. Unless some new damage pictures come out telling a different story, I think 190 EF4 is appropriate here.
I also did a little look on the modernist house that was slabbed. It was built in 1975 and looked to be in not-so-great condition. Though I don't know how much the current condition of a property has an effect on the rating.