I find this all too tropey and construed by Oda (and "Garp”). I also doubt this is a proper send-off for Garp, and I wonder if Oda knew the amount of trash-talk that exists in some places, if he might have handled it a little differently. And I’m not convinced Kuzan can be redeemed, if Garp gets killed before he gets out again. That is, even if the story pretends otherwise, I think he is too tainted pretend everything is normal then.