the pacifist run is just a hrd as genocide. in acifist, the enemies are easier, but you only have 20 hope. in genocide, you have a reasonable amount of hope, and because of that, the enemies are *reasonably* stronger
*nearly* also the temmie wont be obtained unless you absolutely suck at the game, so clearly, if you got the temmie armor, pacifist route is not to easy because you died enough that it is affordable