Sure, the safety of chemical pesticides is an issue, and something for manufacturers, users and regulators to continue working on.
But the relevant issue here is that the most well-intentioned, responsible farmer, has not, until now, had the information available to determine whether spraying at a given point in time is safe, whereas, thanks to this platform, they now do.
Well aside from any health effects of pesticides on humans, it will always be the case that certain chemicals that are suitable to be applied to one type of crop will be potentially harmful to a different type of crop. That's the issue that this platform seeks to address, and it seems to be working so far.