This is old news, at least one vaccine is reported to provide sterilizing immunity, so the expectation is swinging towards the idea that probably they all will.
> the impact of these COVID-19 vaccines on infection and thus transmission is not being assessed. Even if vaccines were able to confer protection from disease, they might not reduce transmission similarly.
> Challenge studies in vaccinated primates showed reductions in pathology, symptoms, and viral load in the lower respiratory tract, but failed to elicit sterilising immunity in the upper airways. Sterilising immunity in the upper airways has been claimed for one vaccine, but peer-reviewed publication of these data are awaited.
Italics are mine.
> These observations suggest that we cannot assume COVID-19 vaccines, even if shown to be effective in reducing severity of disease, will reduce virus transmission to a comparable degree. The notion that COVID-19-vaccine-induced population immunity will allow a return to pre-COVID-19 “normalcy” might be based on illusory assumptions.
I can't sense any tone of favorable expectation in the link you shared.
https://www.thelancet.com/journals/lancet/article/PIIS0140-6...