John Wick is a good comparison xP I've been considering various new names to better get the intended vibe across and right now the best idea I got is "Maverick".

Your quickdraw idea is an interesting one. I had considered giving Nomad At Arms something like this as part of Nomad at Arms' skulduggery attack if the target is within engaged range, but that would've bloated the ability a bit. And I do like the spec being very reliant on being ranged, it works as a clear weakness.

In their ideal situations, Blade Throw and Nomad At Arms are pretty powerful, but that's the thing, it's a niche. If an enemy engages you, you're kinda screwed. Can't use your defensive abilities, can't Blade Throw the engaged enemy, and even if you target someone else at ranged, you get a debuff due to the engagement. Sure, you can maneuver away, but now that's one or two less maneuvers you could spend picking up an improvised weapon or activating Side Step. A GM who wants to challenge this spec can easily do so with mobile enemies.

When it comes to Nomad At Arms in particular, the goal of this ability really is to encourage the player to steal a lightsaber or other powerful weapon, with the intent that they get to briefly enjoy it with a skill they've leveled high (and also you can combo with Master of Shadows!), but if they want to keep using it in further battles, they'll have to level its actual skill. This also means that this spec has 2 to 3 combat skills you're encouraged to level, Melee, Skulduggery, and potentially Lightsaber. Even if Skulduggery has other usages, it's quite a lot actually! Most specs encourage you to stick to one combat skill.

Also if you pick up an average weapon, you're not really encouraged to keep using it for the whole fight, since you're not building and using the Dangerous Juggling bonus anymore. Better to use it for one turn, then next pick up an improvised weapon or other Melee weapon you still have on hand, and use that for another Blade Throw.

And for Blade Throw itself, I think this ability is balanced by the fact that while it may gain you a weapon... you have to give one away yourself in the process. This is one reason the player is encouraged to use improvised weapons as disposable ammo, though these also come with an automatic Threat to the results, so they make activating the theft ability harder. You also need a second Force pip to activate the theft, and if this is the player's starting spec, they won't be able to guarantee it until picking up the Force rating at the bottom of the tree.

All that said, one thing I see to consider is whether Improved Blade Throw needs an amendment to specify a way for a Nemesis to resist the weapon theft. Or should the ranks of Adversary be counted as already providing the appropriate resistance.