The communications role could be borne by the biotech scientists themselves. But while biotech scientists are good in the lab, most are ineffective when it comes to public communication. They use strange words, and lots of qualifiers. They have trouble communicating even with others in agriculture. Not a good choice.
Surveys show farmers have credibility and a reputation for honesty.
It must include talk about how risks are to be minimized and societal benefits enhanced. And it must be given over and over and over again.