This article is quite interesting, but I don't think it's particularly applicable to COVID-19. COVID-19 doesn't kill the vast majority of the people it infects, and when it does, it happens several weeks later, when they aren't spreading the virus anyway.
And while the vaccines are "leaky", they appear to make people much less likely to spread the virus, not more.
And while the vaccines are "leaky", they appear to make people much less likely to spread the virus, not more.