From the aerodrome team - weekly retroactive calculations are done to match a proportion of the USDC rewards to the incentives of each pair that has USDC.
BTW I am for this proposal - one thing to really think about is the responsible liquidation fo DAO assets - there have been side discussions with Aera Finance on this front and I believe something could be in place by the time this proposal is executed (if it is passed).
As such, support the proposal