It doesn't say what technology is used, does it? Could be using wifi, or cell networks.

Wired, using the subsea fiber cables, your still stuck at a 60 ms RTT minimum from NYC to Dublin. Add in video transcoding time and a more realistic estimate of the networks on either side, and you're looking at latency closer to 200-400 ms. WiFi over this distance actually isn't a significant contributor to latency.

Actually transcoding can be done far below that with consumer hardware. I’m doing Quicksync accelerated transcoding right now for Moonlight and encoding/decoding latency is only a few ms. And Wifi is, by far the greatest source of latency. In fact I can get data to a datacenter a few hundred km away over a fiber connection faster than Wifi across the room (<5ms vs 10-20ms)

A few hundred km and 5000-7000 km under the ocean are very different. Good to know transcoding can be so fast, though.

Dublin is about 10-50 times further from NY than you are from that datacenter, and the speed of light is a universal limit.

Where does it say it's using a wired connection? Agree that the latency from the distance is going to be a big factor.