Steam show the game running but doesn't count it for charts.Steam player statistics ONLY count how many people on Steam currently have the game running. When i linked the game to Steam it counted as runing on Steam when you launch it, so it was added to the charts.
Any more theories to debunk?
I can even change the name and put a ridiculous name like "cat meme generator" and steam will tell my friends I'm playing "cat meme generator". Not sure it would work for ED specifically, but I know from experience it works for other games.
If the key is not activated on steam, then it's not counted, period. Your friend will see you are playing, you will have the name and icon and everything, but not the stats for steamchart and Steam itself.