So I saw the thing on Sportscenter.
First off, from what I gathered, they were talking about the distance of the rim from the base. Basically it is the same thing you hear all the time about having to get used to shooting with a different background.
Second, even if the C's could "tighten the rims", why would they? The C's are a jumpshooting team just as much as the Lakers. More often than not, they live and die with jumpshots.
With their defense, the C's have a much better shot at beating the Lakers by slowing down their offense just enough for their shooting to catch up, than to make it so neither team is able to shoot very well.