Very impressive and comprehensive work! Thank you for doing all of this research and the clear and well organized write-up.
The years of life affected is a great number to have, but as you note, how positive the effects are is less clear.
That said, just based on the cost effectiveness, it seems that even small welfare increases from these commitments results in a lot of reduced direct suffering.
Thank you to everyone who put so much time and energy into this program as well as this summary and willingness to share something which may be deemed as not having the best outcome. Strong upvote for sure.