Yes, but to be honest that is an indication of real mining to me. When you're mining you never make the exact estimated amount. Sometimes more, oftentimes less.
Another cloud service I am with gives perfectly symmetrical payouts that reflect the estimated amount. They pay daily and each day the payment is identical, changing only when the difficulty changes. Makes me wonder if it really is a mining setup, or if they are just paying you what the estimated amount is from the stash of bitcoins people give them buying new contracts.