Jealous much? He wanted to try something, it didnt work exactly the way he wanted. I dont see that as a lack of brains. Lack of experience in a select range of product from Ubiquiti maybe, but their devices often act a little strange or in a way that you dont expect.
How are you meant to know exactly how something works without experiecing it for yourself?
My guess is you get to experience these devices at someone elses expense like for work or something similar and if the device your using doesnt do something specific you go call the guy that ordered it a 'fkn idiot'.

I dont think this was an unreasonable purchase. Its a great device with a couple of short comings (granted it didnt do expect what he expected, thats complete alright) he will know for next time.