So, this is an antenna that is between 5.5 and 6 feet long and it uses a planar loading coil. All a planar coil is is a flat coil, nothing more.
They also loaded part of it up with, essentially, techno mumbo jumbo as read from the antennas manufacturer's literature.
MEG... It stands for Mean Effective Gain as stated in the video, and it is actually a thing, although I have never seen it used below the UHF range of frequencies, or on the CB or Ham bands... On HF where both antennas are vertically polarized, just think dBi gain and your 98% there. Oh, and 7 dB-MEG??? How was that antenna measured to get that number? For some reason, whenever I ask this all I get are crickets... I can go on here, but to be honest, this whole paragraph that was read is nothing more than technical mumbo jumbo likely quoted (or paraphrased) off of some technical document... Basically, long story short, they can't dazzle you with brilliance, so they chose the other option...
Also, I have modeled planar loading coils before, they don't performan noticeably different than a typical loading coil... While rare, this type of coil isn't exactly a new technology, if they even offered minor measurabe results over a standard loading coil, they would have been all the rage decades ago...
The DB