It’s an interesting concept, but Travis believes that perhaps the reason he saw two attractive looking human beings (that were white) was actually an illusion. He believed, the second time he encountered beings onboard the ship in which he woke up on, he was possibly seeing something that he would desire and feel safer around. This illusion was cast by possibly the alien beings in which scared him when he first awoke. For obvious reasons this would make sense, to give him a false sense of security and calm while they led him back to a room in order to put him back to sleep. He spoke to the woman and man that greeted him while he was in what appeared to be a control room for the craft, but they did not speak a word back to him.
Why are they always humanoids? Some skeptics have very often add to the discussion. This is an important question and many speculate that perhaps the human body form is a common adaptation to an environment like ours on Earth. However, many experiencers have mentioned seeing mantis like beings present in rooms that a traditional “Grey” humanoid being had been in. It is entirely possible that heptapods are out there in the universe as well traveling the stars. It is not something that has been reported though by many, if not, any so far.
Form usually follows function, that’s what Travis cleverly points out. Evolutionary adaptation is what makes a platypus and a duck share similar features, but inherently they have very different genetic roots. Both have a bill or beak in which the duck bill is so famous for. Both have webbed feet, but the duck is a bird with feathers and a platypus is mammal with fur. There are many other differences, however the point is that these two different animals evolved to thrive in a matched environment in which they both share. Perhaps Travis’ point is that a humanoid form is common throughout the universe because intelligent life more commonly evolves and thrives in an environment like Earth’s. Of course, intelligent life may evolve and thrive with technology to the extent of traveling interstellar without the same environmental conditions here on Earth.