well, just taking a stab at this: the MDX is a "luxury" SUV, and no one wants to pay upwards of $50,000 for a luxury SUV and not be able to put your foot and haul a little a$$. and as far as the trailblazer, i think thats a newer SUV, right? well, i think the next generation has more power than the last generation, right?
and, on another note, its not like explorers have 160 or 205-210 horsepower (depending on which engine you have) and every other SUV has like 350 HP; its not that big of a gap.
personally, i think its cool to get a truck like an explorer (which i would rather have than any other SUV on the market) and make it different than all other explorers on the road.
look at it this way, if all SUV's had the same HP and torque, theyd all be the same.
just my $0.02 USD