I never really paid attention to the aggressive adjective before and when I did I always related it to the blade movement. I think if you can feel the difference in blade aggressiveness based on teeth and kerf, you have much more experience and sense of touch than I have.
Interesting thought though. And I agree with you on the pegas blades. I used FDUR for a couple of years and after trying the pegas MG blades hate going back to FD. Speed, the aggressiveness of the blade action, nothing helped with controlling the smaller FD blades, so not true for the pegas MG.
I run my EX at about 3/4 or 7/8ths speed, I do that cause I hate sanding and if I feed the piece at a slow rate, the saw has a chance to cut off more of the fuzzy remnants from cutting, or at least it seems so to me. I can't remember who here mentioned that saw speed and feed speed were separate in some discussion, a light bulb went off so to speak, an aha moment, and all of a sudden I had more control that before.