I didn't really understand from the video what this new standard covers that Qi doesn't. Is Qi lacking the feature to charge multiple devices at once and why? D

I didn't really understand from the video what this new standard covers that Qi doesn't. Is Qi lacking the feature to charge multiple devices at once and why? Does Qi maybe only have some single-link communication channel between charger and charged-device? I don't know anything about Qi, so any insights are welcome.