Great question. Tried to think of a rational reason, since its supposed to make sense and imply an advantage for someone. For example, Taker's gimmicky matches gave him an advantage (though he lost most of them). Hell in a Cell supports faces who fight bravely, Cage now gives advantage to cowardly heels who want to escape, but not as easy.
Punjabi Prison match gives no clear advantage for those who propose it. Khali was quite slow, and Jinder's a cowardly heel who has gotten his ass kicked by Orton multiple times, and has won both times....based off Orton leaving the ring. I guess because its made out of bamboo or something