Onside Kick Question

[SamG]

I saw the play in question. My understanding (I'm not an official, just a fan), there isn't a requirement for the ball to touch the ground before the K team touches it, but by hitting the ground, the ball doesn't go far and pops into the air.

As far as the offsides, watching the replay, I think the officials called the wrong number. There was another player that was 2-3 players down from the called offender that was further off IMO.