One more thing...
I meant to add that I do see fairly low rpms, and 2,000 at 70 is dead on. Don't be afraid to put a little more foot into the accelerator if the engine feels like it's bogging down. This is a truck, but this engine is designed more like a high-revving Accord or Civic than a brute force Chevy big-block. An extra 1/4 inch on the pedal should kick it down a gear producing a rather intoxicating and smooth oompf, without winding it out. Remember that you have 5 gears to split that power up, and a downshift is a much smaller increment in engine speed than with a 3- or 4-speed. Coasting along on a flat, smooth 40mph road will probably take you into 5th gear, which would likely turn only 800 rpms. But much of a load on the engine should generate a downshift, and too little throttle will delay this. Use the gas pedal to tell your Pilot what you're doing!