I'll point out that the Half-Life logo is trademarked in the EU in several situations related to video games, including the programming of video games. Be careful attaching it to e.g. a tutorial on using Ferret to write a game, or an integration with a game engine, etc.
clearly they certainly respect half life a lot. maybe they don't know it exists actually. i don't know who made it because im lazy and didn't check, but I will say, there is certainly a non zero possibility of someone being alive today and never having played or heard of half life, even if only due to youth alone. but either way it is an interesting coincidence. I wonder if it's more than such.