Perhaps it should be pointed out that the current director was President of the Board before being "promoted" to the role of Director of Development, before being "promoted" to the Director position?
Actually, LBMA was open "after dark" for quite a while. They may not have inserted the moniker "after dark" in the publicity, but it was open until 10pm for some time, with music and DJs on the patio, and with the galleries all pretty and lit up and open to all. This was many moons ago - like, three whole years ago.