It wouldn't take more manpower (check my other posts for why). When I mean a whole month for testing regression bugs, I of course mean they don't spend the entire month doing regression testing,it means they have the month to do it. It also means they have a month to collect user reports trickling in and develop the fixes.
And yes they have to rely on us I get that point...but it's the same with any software nowadays. A 30 day turnover time though is just mind boggling for me I'm amazed it can all get done.. So I agree but for different reasons.. Something's gotta give..