I think OKC really miss the service of another big man Josh Giddey, he was out due to injury, and that Lakers were able to take advantage on that.
Indeed, he was one of their best players that played consistently with them, so missing him against one of the best teams in the NBA is really huge.
Here's his status,
https://www.foxsports.com/nba/josh-giddey-playerHe exit during the game with LA Clippers due to twisted ankle, but there was no report of a fracture or whatsoever, so I'm expecting that it's just a sprained ankle, he might miss few games but he'll come back for sure. I'm sure OKC won't struggle hard even without him, they are not like the Memphis though, but against strong teams, they will miss the service of Giddy. Hope he'll get back soon.
Lakers just take advantage on their experience since they are more way ahead with this young OKC team. The result they take a huge win against them since they take advantage on the mismatches other disadvantage on OKC. I'm not expecting anything for OKC this season but they are really perform so great so if this guy still intact on the team and they gain a lot of experience especially Chet and the rest of the team for sure they became one of title contender in NBA. For now even though they are so great this season still they need to learn from veterans so they can dominate the league.