[Margaret Pilkington]

You are right Less, but there are those in the public eye and in political circles who feel that this decision could(in some indeterminate circumstances) be overturned.
Until these prominent people get behind the main body of those who want to leave, there will be undercurrents and they will work to undermine efforts to leave the EU.
They will use subversive tactics, they may even use money and influence to try to get their own way.
These people believe that they know better than those who voted...the Richard Bransons, the Dominic Cumberbatch's, the leftie luvvies who pay lip service to democracy but would do all in their power to undermine it when things do not go their way.