Because then they have control of it. It's China, if they can control it, they will.
EVGo 50kW here often have reported failures. But I do wonder how much is that there's only 1 charger, so if it doesn't work people can't try another/the other stall. So that gets reported to EVGo and Plugshare. It might be working but flaky, or it's just that it's an old slow charger that people generally avoid, and EVGo makes it a low priority. In Maine, where possible, avoid the Hannaford 1-charger EVGo and use the Chargepoint 2-charger locations instead.