Uma criatura que usou a segunda opção do Grab Grabpling Melhorado ou não?

Esta questão está relacionada com outro recente , já que eu não consegui descobrir a resposta, apesar de ter todos os recursos.

Vamos usar um caractere owlbear que use Grab aprimorado após atacar com sucesso sua garra.

Agora, do SRD, a ênfase é minha:

If a creature with this special attack hits with a melee weapon (usually a claw or bite attack), it deals normal damage and attempts to start a grapple as a free action without provoking an attack of opportunity. No initial touch attack is required.
Unless otherwise noted, improved grab works only against opponents at least one size category smaller than the creature. The creature has the option to conduct the grapple normally, or simply use the part of its body it used in the improved grab to hold the opponent. If it chooses to do the latter, it takes a –20 penalty on grapple checks, but is not considered grappled itself; the creature does not lose its Dexterity bonus to AC, still threatens an area, and can use its remaining attacks against other opponents. A successful hold does not deal any extra damage unless the creature also has the constrict special attack. If the creature does not constrict, each successful grapple check it makes during successive rounds automatically deals the damage indicated for the attack that established the hold. Otherwise, it deals constriction damage as well (the amount is given in the creature’s descriptive text). When a creature gets a hold after an improved grab attack, it pulls the opponent into its space. This act does not provoke attacks of opportunity. It can even move (possibly carrying away the opponent), provided it can drag the opponent’s weight.

Digamos que o Owlbear decida usar a segunda opção e faça um teste de -20 em Grapple e consiga estabelecer uma espera.

A descrição da habilidade diz que o Owlbear não é considerado . Isso significa que o Owlbear não é grappling ? Há uma lista de ações disponíveis para um personagem que está lutando O Owlbear pode selecionar um deles ações ou não?