how is this different than me meowing at my cat and her meowing back? a “conversation” didn’t happen. Also, the scientific community is very resistant to the idea of categorizing any non-human communication as “language” (language is pretty much defined as being done only by humans) despite many cetaceans clearly showing signs of having this ability.
This experiment teaches us basically nothing and has no bearing on talking to extraterrestrials. I can't believe it was written up this way.