Many of those statements are about the relative numbers of infected people in hospitals. There could be value in reducing spread due to vaccinated people (depe

Many of those statements are about the relative numbers of infected people in hospitals. There could be value in reducing spread due to vaccinated people (depending on how much of it there is, as you say, we don't have good surveillance of it), but there's lots of value in reducing hospitalizations, and that's what many of those statements are about.