Yes! I too find people get caught up on the '%Cal from fat' concept that they don't see that they are burning a greater net amount of fat at higher intensities. Who cares if the contribution from fat is 80%, 40% or 10% of the total - as you indicated your total of fat burnt may be higher.
Sounds like you're doing a great job of it too. At the moment I'm fortunate to be lecturing in the fitness industry - I think my students are tired of me climbing onto my soapbox about this topic.