@Mff73 It doesn’t depend on the location. Suunto app correctly shows this segment of profile as 261 feet of climb in 0.2 mi, which is 80 meters of climb in 320 meters of distance.
The problem is that the color depends on the climb category rather than the slope grade, and the climb that short doesn’t make into the “red” category. Climb categories 1-3 are shown as red, and climb category 4 is shown as yellow/orange.
So even if a climb is very steep but not long enough like this case, it would still be yellow/orange, and I find that misleading.