Octopuses are from space because of alien DNA?

Are we all aliens? According to scientists the DNA of octopuses proves that they have not evolved on Earth. "A plausible explanation is that the new genes are imported to the earth in the form of frozen octopus-eggs," said the scientists.

Source
Progress in Biophysics and Molecular Biology
https://www.sciencedirect.com/science/article/pii/S0079610718300798?via%3Dihub