Rav Sa'adia Gaon states the following regarding ritual slaughter of animals:
I will make this matter understandable and say: the Creator has decreed that every animal will die, and has given every human an allotted time of life, and He has made allotted times of life for the animals until the time of their slaughter, setting up slaughter in place of [natural] death. If there were in the [act of] slaughter a greater pain than the pain of [natural] death, [God] knows this; and therefore it is proper that He compensate the animal for the amount of pain that was greater than in [natural] death. We say this is so when the case of additional [suffering] is known from the intellect and not from prophecy.
Source: From Judah Hadassi to Elijah Bashyatchi, Brill, p. 203.
I had never heard this idea before. Most people talk about how it's simply the animal's purpose to be slaughtered and eaten by us. This opinion of Saadia's is almost a reverse of that, like God has to make up for the fact that we slaughter animals.
Do any other Rabbis discuss this idea?