Interesting article. I was also surprised to see that Lithium batteries have the same market share as Lead Acid batteries. You wouldn't know that from reading forums like this.
Since LFP has been in use off grid for over a decade elsewhere, I wonder if the debate will still be going on in another ten years here. By that time there will be some new nano depleted uranium technology battery, or whatever, available which wI'll be .pondered whilst still using an ancient technology, lead acid, The King is dead, long live the King. Lead acid is on its way out, just like dinosaurs, it's called evolution or progress.