My understanding is that Apple does not require payment when their products are used in shows. That would be the opposite of advertising. Normally, product placement works the other way around: the show is paid, not the advertiser. If the Apple logo is hidden in a show, it is usually because the producers do not wish to appear that they are endorsing any particular product. Unlike other products used on set, the Apple logo is so prominent that it is a challenge to genericize without covering it up.
Most of the reasoning in this thread doesn't make sense. It isn't because the light is too intrusive, and it isn't just the converted that like it. Those are sweeping generalizations.
It is much more likely that the non-glowing Apple logo on the new MacBook is just a regular Apple evolution of style. For example, the three colors in the MacBook are new to the Mac line, but they are identical to the iPhone/iPad line. Well guess what, the Apple logo has never glowed in the iPhone/iPad line. Therefore Apple may have simply decided to bring over the non-glowing Apple logo from the iOS devices to the Mac, just as they brought over the colors and brought over many of iOS user interface conventions to OS X.