I keep wondering about these antennae...
For all I understand from physics, the higher the frequency the smaller the waves and the shorter the antennae that transmit and receive them. Those protrusions clearly seem made for the 2.4 GHz band, which is what I'd call last resort or what you really don't want to use, ever, if possible.
And all those really expensive office building access points very much look like a smoke sensor, no protrusions whatsoever and the most advanced tuneable antenna arrays completely hidden inside...
So my take on these is that they are mostly, if not completely unnessesary for 5 and 6 GHz bands, unless they did in fact include them there in one tiny corner or another.
But I don't take well to someone who evidently is trying to fool me with a misleading design that is rather unpractical on top.
Perhaps TH could do some research and provide a bit of toungue lashing where it is appropriate?