TFA (not the linked wikipedia article) basically just asks the question, "what if an alien's sensory systems (vision and hearing) were far more acute than ours?", and then gives a rather superficial answer to that question.
I knew it would do that when I started running into grammatical errors. I was right.
TFA seems to be trying to make the argument that if an alien's vision or hearing were better than ours, the alien would not be able to comprehend our electronic visual displays or sound reproductions. The argument is not convincing at all, though. After all, we have color vision, but black and white media still works quite well for us.
They were arguing that our displays depend on persistence of vision, and that this creature won't have any. A preposterous notion, because persistence of vision is in the brain, not the eye, and we've known this for over a hundred years. But this argument pales next to the stupidity of the argument that a creature with a higher hearing range wouldn't be able to perceive our audible communications. Really? That's so stupid, I can't even stupid how stupid it's stupid. We have pets with higher hearing ranges, and they can literally understand what we are saying in some cases as their brains are sufficiently developed. They're claiming a smarter entity with more advanced senses won't be able to understand us? That's nothing short of idiotic.
The truth is that aliens are not unlikely to look a lot like us, because you still have physics to deal with no matter where you go. A creature with four legs is still at a disadvantage when it comes to industrialization. You need some manipulators attached to your body, but not too many because more parts just means more to go wrong, it's actually a liability. Too much hair makes it hard for you to manipulate fire, which you need to advance as a tool maker. If you can't walk upright, you can't free your hands for masturbation.