"light offhand" weapon skills
No, they are simply placeholders….Every other class in the game gets 1-3 main hand and 4-5 off hand. For the thief, 3 is a combo of main and off hand. They couldn’t just give us 2 abilities without an offhand equipped for purposes in the starter area.
You aren’t missing anything, they’re skills solely intended for the first hour or so of play before you’ve gathered weapons.
If they want to at some point implement a set of empty-hand skills for #4/5 and a statted piece of gear to go in the “empty hand” slot, then they could return to these skills and tune them up to be competitive.
The point of one weapon skills is because using a single weapon your base attack is higher. However the skill set isn’t tuned enough for them to be useful at higher levels.
Personally I’d love for viable one weapon builds, dagger twisting fangs need an evade or projectile spin, stab needs a bleed, and the rapid fire of the pistol needs to be much faster, like the thief was smacking the hammer with his or her hand to make it unload quicker.
The point of one weapon skills is because using a single weapon your base attack is higher
You get your average weapon damage when you are dual wielding, so this is technically true but totally useless. Since the largest gap with 80 exotics is between daggers at 981 and pistols at 1029 using just the pistol instead of the combo yields an entire 24 higher max weapon damage (and way way lower minimum weapon damage). Your average range goes from about 950 – 1005 when using a pistol and a dagger to 876 – 1029 if you’re using just a pistol. Incidentally, these bring the exact same average (952.5 weapon damage). So you’ve gained zero actual average damage in return for 24 max damage…
…which is negated several times over by the 90 power (equal value per-point to weapon damage) that other weapon could bring to the table, completely ignoring the other two stats it could bring.
There’s no point to it.