Why scrapping hulls need not remove Azur Lane characters

In Azur Lane, would mass fleet scrapping before the Sirens appeared become an even greater mistake?

The initial suggestion is challenged: under the lore described, scrapped vessels could still appear as ship girls through Wisdom Cubes.

The suggestion that fleet scrapping would remove potential characters is challenged by another participant. In the fictional chronology described, the Sirens destroy the High Seas Fleet and the Royal Navy at Jutland with a nuclear weapon while the vessels are still ships. Ship-girl manifestations appear later through Wisdom Cubes. On that explanation of the lore, scrapping a physical hull does not prevent its ship girl from appearing.