I don't think it's equivalent. When Rebble did what they did, it was because Pebble was going under and they had no EOL plan. Rebble took it upon themselves to carry the torch without having been passed it.
If Core were to do the same thing here, it's not the same, because Rebble is still active. You can't kill what's already dead (Pebble), but Rebble is very much still alive.
If Core were to do the same thing here, it's not the same, because Rebble is still active. You can't kill what's already dead (Pebble), but Rebble is very much still alive.