As an Electrical Engineer, the cloaking "frequency" in the frosting of the cake was utter and complete bullshit. At least make an effort to try and give me pseudoscience/treknobabble, don't try to pass off sugary sweets as a frequency.
Star Trek is generally good at making their science sound believable in the realm of "you know its fake, so go along with it". Bad stuff like that though takes me out of it.