If I had to guess, I would say it probably comes down to wanting to go with static, ahead of time compilation rather than JIT. There are real and valid advantag

If I had to guess, I would say it probably comes down to wanting to go with static, ahead of time compilation rather than JIT. There are real and valid advantages to AOT compilation. There's downsides with the LLVM approach too. For example, LLVM makes it explicit that they provide zero guarantees when it comes to the stability of their bitcode format. That somewhat limits what you can do with it.