It will be interesting to get the commentary in the report as to what periods in the four months were subject to the 20 minute delay that can trigger normal TEAM and what periods were subject to the 10 minute delay to trigger trial TEAM*.
Of course the delay periods include delays at the originating airport (as well as en-route delays and stack-holding delays) and the trial can be triggered merely by anticipating that the delay time will be reached unless the freedom measures are implemented !
Goodness knows how ATC manage to keep track of this - perhaps someone continually tracks these times and hoists a flag / blows a whistle when the trial can start and lowers it for the "all clear".