People were actually complaining about how OP a para is and how it could make his user win easier. Also you can't compare body slam with curse since bodyslam will have to para to win easier, so relying on rng, curse will sweep if your opponent doesn't have a phazer or something, so that's all their fault for not bringing one.
My point is that we can't do shit about rng and it's out of our control (there are clerics but like XPLOZ said it's not worth running them because it's not that good) and you can't get swept unlike curse which you only need to bring a phazer for (thinking of haze vapo, haze weezing, roar arcanine, ww skarmory and others..) to not get swept.