It's funny, because I HAVE had land owners who just want control, and are quite happy to see some around, asking me to leave a certain number. Also have land owners who ask me to stop once they start breeding. . . .although I usually do on most of my land anyway, as we hit them hard enough during the season.
In general if they are seeing the results of your work, they tend to be happy. And if you know your ground, you know what you can take off without irreversibly damaging it.
Having said that, some places do want a total eradication, and if that's what they want, i'm happy enough to