I think their trying to incentivise a change in mindset, where you rather use your own power for charging unless you really need a top-up, thus freeing up their chargers for those emergency top-ups. This would also help with PHEVs clogging their network and rather have them charging at home...
So these guys entire business model revolves around using WA Business APIs to route between users and government individuals? Sounds like a crock to me and for once I believe Meta made a valid decision.