The comments are pretty spirited and here is one interaction on the video thread that brings up a good point:

Commenter Jonas had this to say:

They keep trying to find planets like ours but you don’t know maybe aliens can live in lava or in a really hot place maybe they don’t need water or air we don’t know. But think about this if the ocean can have life and land can have life we need air to breath and fish can live in water anything could live in anything they just need adapt

Commenter Airik replied with a good point:

 

Because all they are doing now is searching for ‘LIFE AS WE KNOW IT!’   because they know how to do it,  they are good at it and there are soooo many places to look for!…  yes yes  there are many possibilities about how alien life could exist but they must all obey the law of physics and chemistry, without knowing the principles, its a lose end.

Do you think we’ll find life on one of these exoplanets in the near future?