Earning Aeroplan miles is independent of payment method. That means you can choose any credit card to pay that is bonusing food deliver (or, like Capital One, that is letting you redeem miles at full value to pay for food delivery).
That means this is an entirely new, stackable, avenue of value for Uber Eats food delivery orders which is huge – especially since Aeroplan lets you redeem for Star Alliance awards on their website, at reasonable rates and many partners without fuel surcharges, and now including awards on Etihad as well.