You obviously have no clue what Shuriken Expertise does. Here, let me help you:
http://ddowiki.com/page/Shuriken_Expertise . There. All better now? Shuriken Expertise has nothing to do with damage. It has to do with having a chance to throw a second projectile based on your dexterity score. Throwing builds rely more heavily on rate of fire to be competitive because their weapons typically do less damage than even a bow does. So, by changing Shuriken Expertise to be Throwing Expertise, then you make it possible for people using throwing weapons that are not shurikens to achieve a rate of fire that makes those other weapons competitive with using shurikens. I'm galled that you're on the Players Council and didn't even bother to do a modicum of learning before responding to my post. As far as the change I'm advocating, they could even make it a multi-selector so that instead of Throwing Expertise being a single feat letting you get an extra projectile no matter what throwing weapon you're using, they could set it up similar to Improved Critical such that you'd have choices like this:
* Throwing Expertise: Throwing Dagger
* Throwing Expertise: Throwing Hammer
* Throwing Expertise: Throwing Axe
* Throwing Expertise: Dart
* Throwing Expertise: Shuriken
That would make people who want to play a throwing build choose which weapon (or weapons, since they shouldn't be mutually exclusive) they want to focus on. Honestly, if it were set up this way, I would have selected axes and hammers because that's what I really wanted anyway. However, since shuriken throwers can achieve a much higher rate of fire, it makes choosing anything else pointless. Since you aren't familiar with how throwing weapons work, let me educate you a bit further so you fully understand why this change is important.
Let's say we've got a character with 50 dexterity, 35% doubleshot, and a 30% doubleshot action boost. (These are achievable numbers and I don't even have a completionist.) Now, with Shuriken Expertise and using shurikens, this character has a 50% chance to throw another shuriken on every attack. Doubleshot is calculated for each shuriken thrown indepedently. This means that every time this character makes a throwing attack with a shuriken, they have the potential to actually throw four shurikens at once: 2 based on their dexterity, and then another 1 for each of those 2 based on their doubleshot. Now, if that character switches to any other thrown weapon, they have only a 35% chance to throw two projectiles, which can be boosted to 65% for up to about three or four minutes (depending on class split, destiny, twists of fate, and so on). And if you think I'm wrong about the way Shuriken Expertise and doubleshot stack, you should think again. I'm currently running a thrower build and I've seen where I have gotten three or four projectiles thrown. Granted, four is rare since my doubleshot is only 3% right now. However, soon that character will have an unbuffed doubleshot of 33%, boostable to 63%, and his dexterity at level 9 is already around 28. I can see the difference in how much slower my rate of fire is when I switch to a hammer (for skeletons) as compared to when I'm using a shuriken. The only saving grace for the hammer is that skeletons take full damage from that since it's a blunt weapon.