Well, the Seralini study was a) paid for by greenpeace and b) widely critized in the scientific community. The publication had to be withdrawn due to errors in methodology and statistics.
But of course, the public read a lot about the study and much less about its skeptical reception in the scientific community or even the withdrawal.
So I agree that scientific reporting has to get better. The media should hire people that can read a study and interpret it in a professional way.