I completely agree. One thing that has been proven, and which I like about Pierce's (and in a much smaller scale, Tony Allen) compared to Ray Allen is that whenever the shots are not going in, Pierce can just take it to the hole.
As it was shown on the game, whenever the offense halted, all Pierce had to do is slash to the basket and he'd either get the shot, a foul, or both. That is a great way to get out of the funk, and TA does have the ability to do that. I think thats important when we have the 2nd unit out and the offense is out sync. Besides, with shooters, thats what House and Pruit (again, a smaller scale here) are there for.
Basically, for the squad that we have now, if you asked which Tony would you prefer, a slashing Tony or a shooter, I would have to say a slashing Tony.