He does have a previous conviction for Intended Receipt of Stolen Property. Perhaps that negated his ability to use that law?
Or.... portions of the law you cite may have been modified by Oklahoma Courts via case law type decisions.
For example, prior to the Ahmad Arbury well, lynching, Georgia had a broad citizens arrest law. But.... previous to Ahmad, a gas station owner attempted a citizens arrest that involved killing a resisting shoplifter.
Georgia Supreme Court upheld the gas station owner's conviction by adding key case law stipulating that ultimate use of force in a citizens arrest must have been proportional to the offense.
Likewise, my State (Texas) has a written law that apparently gives citizens the ability to use lethal force to defend property after sunset. But.... as the Dallas County District Attorney once directly stated, that law does not give one the ability to shoot leaf blower thieves. He may of been referring to later case law.