The few times I used the BMI Regional Embraer from BRS in 2010, I would say those LF's are about right.... or a little high maybe.
I have also used BMI Regional from LDS-BRU a few times, and the loads were broadly similar.
I have noticed Air France getting good loads on the ATR-72 though, at least the flights I was on. I think there were even one or two that were completely full.
Good to see that full service airlines can still justify BRS in the face of EZY/ RYR.