Still think we lose/lost more people to -
1) Needing new hardware.
2) Lack of change in gameplay, after all is it still really AH1 with a few bells and whistles.
3) Some people were expecting more from AH2 than has currently been delivered.
4) The numbers imbalance.
Without knowing numbers (only HT has) we will never know. You can say you check all times, but unless your on 24hrs day/7 days a week etc, your only getting a snapshot.
I seem to remember someone posting screenies showing supposedly why ENV wasn't working. On closer examination of field numbers, darbars etc, they turned out to be showing nothing of the sort.