It's still early in the season, teams can still heat up / cool down / and what not. Injuries could also happen. But with the way things are looking right now, and with Chet expected to come back later in the season, it's really hard to find a team that will beat OKC in the West in a 7 game series. Mavs might get 1 or 2 over them when Luka and/or Kyrie gets hot, but I agree with you and don't see any team beating OKC in a 7 game series.