He certainly had his confidence boost, he can't stop making shots especially beyond the arc. IIRC, the 2 back to back triples hit the OKC hard that they cannot come back anymore. However, that wasn't the turning point, it all started with Dort reckless move trying to fish a foul but ended up getting an offensive foul. Additionally, SGA was pretty limited this game, he scored less than 20 points which is uncharacteristics of him since he average 31 points this season.
Back in the day, hitting 40% on a shooting night was phenomenal, these days you have to go 50%+, I mean I remember when 50-40-90 meant something, nowadays you have to be nearly there almost all the time, anyone who doesn't have that doesn't even seem to be considered great anymore. So all in all, I am guessing that it is not going to be all that easy, we need to just consider Clippers just had a better night and that's about it, doesn't mean they are the better team.