I think activists on the ground are different from those at the top. The people leading the conversation ought to be aware. And May should not have signalled article 50 until she had unity within her party.
It is amazing, and something that has been raised in this thread numerous times, that even the principal architects of Brexit, people like Johnson and Davis, did so with no real prospectus or plan behind them. They entered their Brexit positions practically with a blank sheet of paper, which is staggering. Equally staggering of course that the government should offer a binary referendum with little real planning done for what should happen in the event of a leave vote.