PS4 users, which are the majority of FO4 players, can't download mods that use custom assets, like the Hellfire armor, unless something changed from when they first launched mods for consoles.
Which makes paid mods as they are today, an attempt to make money from all those PS4 players who can't get all the cool stuff for free.
Because the creators club is all contract work and not "mods", so it doesn't have to follow the rules for mods on PS4.