I read Level 5 Fish's comment again, and I understood it correctly the first time. The question was why is it not possible to dash in the air? not that It doesn't always properly trigger", my answer was that allowing the player to dash in the air with no limits would break the level design, the main mechanic is changing gravity and not dashing in the air which is normally not even possible unless you use the super dash, which is limited to how much power bar you have, and it's the last mechanic taught in the tutorial.
The main mechanic is changing Gravity, so the levels are designed around that. Again dashing is a complementary mechanic that already has a cooldown of sorts in the power bar. Also, I've seen over 50 people play Gravity Storm, both in voice chat or in youtube videos, and it's the first time someone says the dash does not work properly, It doesn't seem to me that you have the same problem as Level 5 Fish, if you send me a video showing me the dash not working properly, it might be easier for me to see if there's a problem with the dash.