Not all civvies are against LF, me for one.
Also, when I explained to some folk in my local just why the Chinooks were flying so low in this area, there was a general (if grudging and not 100%) acceptnce of the need. The general public really do not have any idea of why it is done and just see it as "playing about" until its explained.
Maybe a bit of money spent on a TV ad would be a better bet in getting the public more on-side than all the free LF videos moldering an a MoD filing cabinet?