Sometimes its hard to predict how a particular flight will stack up. Maybe yours had a bunch of EBCI folks all of whom got numbers ahead of yours.
Interestingly, I get my best T-24 numbers on my 5:30AM flights; ones which I would otherwise assume to be heavy with EBCI purchases (because there are a lot of folks not willing to set their alarm early just to check in at 5:30!). But when I get an A-25 or A-30 it tells me there aren't a lot of EBCIs for that flight.