Nope, in real life deagles are also 1 hit kill same as the other weapons.
This makes the game realistic.
>mfw
The game isn't based off a realism... and either way, if I shoot my toe with a deagle, I most likely won't die.
But anyways, the game is supposed to be high action shit, where you aren't going to get anywhere unless you've got good reflexes. It's all about being fast. That's the big purpose of the game. That doesn't meant that some weapons are still overpowered more so than they should be, however.