Amazing analysis, one of the reasons why I love this arc so damn much:
https://www.reddit.com/r/OnePiece/comments/gbo1pl
Somehow they missed out Perona's DF though, the embodiment of depression as a weapon too.
They could have mentioned Brook's remorse over Laboon and thus losing his crew and "breaking his promise" to Laboon too:
Brook and Moria, maybe even Perona are extremely underrated and misunderstood and I will fight on that hill to the bitter end gladly. (Great song by Placebo too, The Bitter End. Song To Say Goodbye really hits hard as well, especially for someone like me and also what I tried to do recently and in the past.)
https://www.reddit.com/r/Piratefolk/comments/1ki3y4y