The effect on mortality is what mattered, and that effect was very significant in the risk groups. Would have been even better if the effect on transmission ha

The effect on mortality is what mattered, and that effect was very significant in the risk groups. Would have been even better if the effect on transmission had remained with the later variants, but unfortunately it didn't as the virus changed. Preventing transmission would be ideal, but that was just not possible with this particular virus and regular vaccines. But it still saved a lot of lives because of the very strong effect on mortality.