OU-Texas Punt Muff - Possession?

[Kajun Ref N Texas]

NCAA Rule 2-2-5-a

In Possession
ARTICLE 5. “In possession’’ means the holding or controlling of a live ball
or a ball to be free-kicked. It may refer either to player possession or team
possession.
a. A player gains possession when he secures the ball firmly by holding or
controlling it while contacting the ground inbounds. The ball is then in
player possession.

Did the OU player have possession on the "muffed" punt? What say you?