The weekly cap on Classic Commendations will be removed in an upcoming patch.
Incidentally, there is currently a bug that causes the game to warn you that you've exceeded your weekly cap even when you are at 0 in your weekly progress (it's erroneously looking at your total commendations). Make sure you check the actual weekly progress value displayed in your currency tab.
That's excellent news. Would be even better if u gave us all comms we'd have earned if the weekly cap didn't exist. But that's probably too much to ask, I understand that :-)