Nope, that study is about survival of patients with his form of cancer and hepatic metastases. As far as I'm aware the cancer in Jobs was detected long before hepatic metastases.

This analysis disputes that, indicating that the metastases not only may have been present, but also that waiting 9 months likely didn't impact anything. Of course it's based on probabilities, so his individual circumstances may have been different, but it's certainly sufficient to avoid the harsh determination that the only reason he died was due to his own hesitation for modern treatments. Personally I think that delay was misguided as well, but it looks very possible that the final results would have been the same:

https://centerforhealthjournalism.org/blogs/2011/11/10/what-...