You have always had to have your ticket ready for inspection even at
stations without barriers or staff. This is of course silly when most of the
time it is not required. This has meant the publicity has not been accurate
and is misleading.
I think you will find in the next few months a lot more will be done to
advertise the fact. It has already been highlighted as a problem hence the
fact the minimum fare is being charged at the moment. In the future this
will be changed.