While I love creepy science stories as much as the next person, if these sperm bags were just secreting semen then no matter how much you dress it up, nothing was fertilized. Human and squid DNA is completely different thus unable to produce any kind of fertilized cells.
This story is really no different to a be sting attaching itself to its target and continuing to inject poison. Many animals have organic components that work semi autonomously even when separated from the host. This seems no different.
I really hate sensationalist reporting like this. It cheapens real scientific reporting.