Well that's an issue with the reports or some other in-game issue. The issue may very well be with what Evony did during maintenance. But, the problem did not occur because there was double maintenance. The problem occurred because of what they did during maintenance. The same problem would have happened if they did whatever during a single maintenance.
If Evony did some sort of update, and the patch screwed you over, then complain about that. But the fact that there were 2 maintenances is not the reason you got hosed.
Double maintenance is no big issue... what Evony does during a maintenance might cause issues (single or double or triple or whatever).

