It’s just a big opportunity that hasn't been fully taken yet, because the batteries turn out to have a much longer lifespan than the naysayers predicted.
I look forward to one day have a cheap-ish repurposed EV battery backing up the household or local retail (since I am rural and we get storms), or an array ensuring the local pumping station doesn't need a generator.
Used batteries will enhance resilience, so all societies need to invest in public support for recycling and repurposing infrastructure and regulations that enable small local facilities.