This would mean they are a nationwide power company with the ability to charge more kWH for reduced charging time. Add in solar panels,battery banks, and optimizing recharging with the local power company and it's printing cash at that point.

I think it's also that the EV market needs better charging stations, that are more reliable as the existing charging brands have a bad reputation. Tesla also needs charging stations to work for non-tesla vehicles or the trust in a EV would drop.