I'm surprised the Greenland Connect cable connects Newfoundland to Iceland by way of Greenland instead of just terminating at Greenland. I wonder how much non-G

I'm surprised the Greenland Connect cable connects Newfoundland to Iceland by way of Greenland instead of just terminating at Greenland. I wonder how much non-Greenland through traffic the cable gets. It'd have been cheaper to skip the Greenland<->Iceland leg, right? It's also interesting how it looks like it's easier to go around the west coast of Africa than to run cables overland across the Sahara.