You can pretty much have a top-tier gear without any RNG involved in it. You can also craft and HQ items without having to pray to RNGesus. Most of fights are mechanic-related and barely have RNG in them.

Basically, you can be active, have an above average gear and craft without ever depending on RNG. So yeah, obviously this game can be enjoyed even if you're the unluckiest person in the world.

Peoples that complains about RNG in this game should probably check what other MMOs have to offer. This game is veeery gentle compared to most of them.