I think you did not get the point. The allegation is that the news reporter leaked information to the trader, so, the other way around. Bloomberg had privileged information and while they are not named in the suit, news outlets that are in possession of privileged information are not allowed to pass such privileged information to individuals but need to publish such privileged information publicly or inform the SEC of such privileged information. Probabilities are incredibly thin that this trader by mere chance put on trades 5 times moments before such privileged information was made public.
I wonder what would happen if instead of leaking the news to Bloomberg, he instead anonymously posted it online to forums like 4chan and reddit. Then only enter his position minutes after posting the information. Within a few hours news sites would probably pick up the info and have the same impact as leaking to Bloomberg, but he would have deniability and say that he has an "AI" that scans social media for information, and he only traded on public info.