Azir interaction with Fizz

When you said Azir's ultimate blocked dashes I was curious about certain scenarios and almost all of them seemed correct. Gnar's double jump, vlad's pool, and leblanc's dash all were prevented by the wall. The one that incorrectly came up was Fizz's playful/trickster. I realize that he gains an "untargetable" mechanic when in the air, but in the end it is still a dash and NOT a teleport. My question is: Is this an intended interaction or is this a bug that goes in relation with the ultimate's "damage and block" interaction with enemy units?