Slow falling is considered a negative effect

The bug

Slow falling is considered a negative effect. I would have expected it to be a positive effect, because it prevents you from taking falling damage.

To reproduce

1. Run

   /effect give @s minecraft:regeneration

2. Note that the effect icon is displayed in the upper row with the positive effects
3. Run

   /effect give @s minecraft:slow_falling

4. The effect icon is displayed in the lower row with the negative effects