Can't blame them that much when Monsanto said you didn't need PREs with Roundup and resistance would never happen.I'm thinking you have way too much faith in farmers correctly using herbicides. Pushing the easy button is why roundup didn't last as long as it could have.
I knew way too many who never bothered to use pre's when it 1st came out. Also the ones who skimped on the rate, letting weeds get used to it. Same ones bemoan the fact that their weed program doesn't work now.