Some of the debate may be partially based on another difference in beliefs-
@avromie7 in general seems to be mostly concerned with immediate deaths, while
@Lurker is in general more wary of the virus in general, including long term consequences.
Purely hypothetically: If having the virus shaves 10 years off of the average adult’s lifespan, then even if the immediate death rate isn’t cut as sharply it would be prudent to focus the vaccine on limiting spread more than limiting deaths. If it only impacts vulnerable people significantly while leaving all others mostly unscathed, then it would be wise to move quicker to vaccinate with the aim of limiting immediate deaths than to worry about less consequential spread.