User blog comment:Piyush Banerjee/Shin DxD 2 discussion/@comment-2600:1702:3600:12F0:1DB7:CCBE:4F4:B192-20190207160114/@comment-5384276-20190207162536

I think it has more to do with impluse control and immaturity. He could still have his skills but be cocky and do stupid things. Many fighters especially the young Longinus users, do not manage their power properly or get cocky.