Why isn't there full frame data on jump attacks?

I’m still getting familiar with frame data but I noticed that theres no information on jump attacks. It’s probably because its height dependent but why don’t guides display hit stun on them?

iirc, the sources for frame data for SFIV did not give info on hitstun for any attacks, ground or air. It had to be calculated using the information given on frame advantage and recovery.

And since neither of that data exists for jumping attacks, the only way to figure out hitstun is to use a 60fps video capture station and analyze stuff frame by frame… which is a lot of work for information that isn’t really all that useful.