People forget that this is still Elbaph/Harald Flashback, it's just that We are in Xebec Part,
Xebec's End will Mirror Harald's, (They are basically Same Character but Opposite Choices)
Which is Oda's Style of Two Faces of Same Coin,
Both Xebec & Harald were Attacked by their Own People, but Xebec chose to Fight back, while Harald chose not to,
And you think it's a Coincidence that after such Encounters, Harald was Face to Face with Jarul & Loki, while Xebec was met by Saturn & Imu?
And you think it's a Coincidence that conveniently Shanks happened to be there that Day? Similar to Roger now in God's Valley?
We also already seen what even King of Elbaph can't decide, as He wasn't allowed to marry his Lover,
Xebec vs His People happened for same reason Harald vs his Men occurred, which was for the sake of their Lover & Son (Hajrudin/BB),
Meaning Elbaph Elders probably decided something that involves Harald's Lover & Kid, (Jarul being one of them similar to Saturn)
I'm explaining all this because if Harald wasn't Killed by Loki or Jarul or Shanks or Gaban, then I don't believe Xebec was Killed by Imu or Saturn or Roger or Garp, as Simple as that. Instead, there is Someone who convinced Elbaph Elders to make a decision that led to Harald facing his own Men,
Hajrudin wanting Revenge on Loki, is no different than Blackbeard wanting Revenge on Imu,
The Real Villains instead are those who triggered these Two Incidents, & most probably the ones who Killed Xebec/Harald,
In Elbaph's Case, it's Someone not Introduced yet, He will arrive to Elbaph later or closer to 13 Years Ago,
But in God Valley's Case, it's clearly Garling & He will obviously get to Kill Xebec,
I think this Chapter told us how They will Die,
Xebec chose his Life over his Family's, but what if He had to face his own Crew? Xebec's Legendary Death will happen because He will refuse to Fight his own Crew, giving a Last Speech explaining his true feelings towards Piracy, his Crew & what He values most,
While Harald is gonna be the Man who preferred to give his Life over his Men, but then He will have to choose between his Life & his Allies Life (All Countries He bonded with), and He will choose to be against them instead (Reverse Story of Xebec's, showing you that the terms of Hero/Villain are similar to terms of Peace/War as explained by Doffy),
Both dying because of their Allies, but for Opposite Reasons,
Garling & this Secret Elbaph Villain are there to be the Executioners,