Not gonna speak for the people in Collie, as I have never been there, but what one person says does not make a majority, we will have to wait til election day next year to see what the majority of people of Collie really think about Nuclear.
What I do know though is regional Australia usually votes Coalition, metropolitan Australia usually votes Labor and inner-city like voting the Greens. If the majority there is really opposed, the Liberal pollie will lose his seat in Collie and the surrounding region.