The actual narration calls it a "Seige". We have not seen any "Seiging" yet thus far.
There is very clearly narrative intent to ruin the shit Kizaru's instructed goals
- Kill Stella? You know he's living
- Protect York? Yeah Catarina or Laffite will kidnap her probably
- Protect the Mother Flame Factory? That shit will get destroyed. We havent even seen it yet, so we definitely will.
- Protect Punk Records? Again, the island is surrounded by 30K marines and battleships, do people not expect this island to get blown to fuck in the end?
And in case you or anyone forgot: