If we assume that for each rebound each team has equal probability ot grabing it (since the ratings were very similar)
According to Bernoulli distribution, the probability of one of the teams to grab 48 or less out of 114 total rebounds is:
p=0.111
It means that in 11 games out of each 100 games like that, there will be a rebounding difference like that or bigger.
Now, if you look randomly for games with equal rebounding ratings between both teams, and the actual rebounding difference is singnificantly different than that, you will have a point.
Adding FT's missed with the potential for a rebound, I get total misses of 126 (62 Opp, 64 Sungrazers).
Does that change the number much?
Either way, this just seems like it one of those inexplicable things, like a good shooter going 0-18 from the field on a random night.