Did you not see the image I just shared with you lol. It implies this is going to be worse than Ohara. Not damaging these things may very well just not happen, or be salvaged before the island is destroyed.
But its getting destroyed nonetheless. Things tend to not go the villains way on this series.
Did you not see my first message? Lol
As I already said, Vegapunk '"kidnapped" + all Ohara's work in the hand of Luffy + whatever BBP will do is already plenty worse than Ohara and definitely a big incident that will shock the world.
In theory, as I said. Maybe there will be something more.
And no, the fact that Sentomaru said something that is totally counter by Saturn's words doesn't mean Sentomaru is necessarily true. If anything, is the opposite.
Also, it already was, because the force at EH already surpassed a Buster Call, as the Narrator said.