Thanks for your V. helpful replies to this. As you can see on the visual, cloth generator isn't ideal for this:
Move normals is promising. As you can see from the top of the X, it's not perfect either, but certainly the closest solution:
I would've liked a non-destructive, so will look down the ExplosionFX route....
Xplosia route interesting, but the move normals seems like the best way so far