User blog comment:B214/Volume 17 spoilers./@comment-24.2.168.254-20140220012350/@comment-24468758-20140220091430

There are multiple reason why Draig could have said that but nowhere is written that he shouldn't attain it because of Juggernaut Drive even if it reminded him of it. It could be overly consumptive in regards to stamina or demonic power or the recoil could injure him. These are in my opinion much likelier reasons for Draig saying that.