Rulebook said
I would not say the ball "landed safely" when it lands to the hand of the Kicking team player.A kick-off must land safely in the receiving team’s half of the pitch.
And
But ball hasn't get "off the pitch" or "into the kicking team’s half of the pitch".If the ball deviates or bounces off the pitch or across the Line of Scrimmage into the kicking team’s
half of the pitch
I would say it is not Touchback.