Morel at only 30% of his usual strength held Pouf off for quite some time and Pouf didn't engage in direct combat with him. Now, Morel stated himself that he isn't really a fighter, he is a sea hunter. The real fighters among the hunters are the Zodiacs and both Illumi and Hisoka are already more or less confirmed to be stronger than most of the Zodiacs. We can't be sure about Youpi and Pitou but i find it hard to believe that Pouf would stand a chance against guys like Hisoka, Illumi, Silva, etc. if he can't even get rid of a heavily weakened Morel.