Resting LeBron is important now no matter the competition. Whether people want to admit it or not, he's older. This is going to be in play especially since he's still logging major minutes and we just have to get used to it.
LeBron James has played 128 games and approaching 10,000 more minutes than Dwyane Wade who now has french fries for legs.
This team winning without LeBron on some nights is a good thing and builds chemistry.
The idea that they would use knee soreness as an excuse to rest him against one of the most difficult games of the year is completely far-fetched.
Plus, why even lie about it?