Suppose you are in the final quarter of a loop maneuver, looking at the
ground. Your speed is high and you are pulling back hard to bring the
plane back to level. Can that result in a stall?

Think of it this way, the pilot flew into the ground because he/she
failed to properly deduce the correct altitude to fly the maneuver based
on the then current conditions (density altitude, aircraft condition,
pilot condition, terrain, etc.)
Many times an underlying cause is pilot ego.
Showing off on the spur of the moment to impress others without
considering all the above factors.