Ha! Cleveland's defense is still a joke.
Those wins over Boston and OKC before the ASB were flukes. I think it's fair to say both teams were kind of wary since they barely had film on the new-look Cavaliers and didn't really know how they'd function (how many minutes would this guy play? what's their small ball lineup? big lineup?)
Kevin Love coming back should help them, but his defense was also pretty bad while healthy, so yeah, CLE can outscore many teams but won't outscore the likes of Houston, Golden State, and probably not even Toronto with the bench TOR has this season (props to them).