Because the samples were obtained from people who were undergoing surgeries related to erectile disfunction. So that limits the amount of samples you can get. It's still very much important to publish that information, even if your sample size is small.
I do think that a rational society would locate a problem like this and invest in solving it, rather than have a handful of scientists drip feed terrifying new theories and discoveries to a sensationalist media intent on scaring the shit out of people. But maybe it’s the only way they can attract funding for more study, I don’t know. I don’t think it’s really useful for people to be hearing about all these crazy environmental poisons - forever chemicals, microplastics, and so on - that are basically impossible to avoid and which no-one yet understands the implications of.