why do people talk of coe and not stu, page-11

The problem for COEO is if the market fails to revalue COE/STU before their expiry- you have to exercise and turn from a trader to an investor and if you want to be an investor STU is the play.
The best answer for all concerned is a properly co-ordinated marketing effort commencing late Jan/early Feb to the appropriate jounalists and brokers.
Unfortunately, given the inertia to date from the Adelaide establishment (STU/COE/BPT), it probably will not happen.