That is for deaths. I don't think anyone is left doubting the vaccines effectiveness against severe illness except for fringe far right conspiracy theorists.
For actual infections, it's really close. In fact, there are more vaccinated infections than unvaccinated infections by a pretty wide margin at this point but that data is quite skewed given that nearly 80% of the population has been vaccinated. Outside of a 5 week window where the vaccine does in fact prevent infections at a high rate before quickly fading to near 0 after a few months, the vaccine offers little to no protection against contagion and likely offers little to protection curbing the spread. I wont say zero but it appears to be at least statistically insignificant.
For the remaining small pocket of people that haven't had prior infections or vaccinations, well, they are simply strengthening the gene pool of humans and I really couldn't care less.
The bottom line, there needs to be an updated version of the vaccine but it's also quite likely by the time it comes out the effectiveness will only last a few months until the virus mutates enough to render it ineffective against contagion and the new vaccine itself could help force that mutation. Regardless of the vaccine, each day immune response is strengthening making the virus less of a threat. By best estimates the fatality rate is halving about every 3 months. At some point (we are likely pretty close to that point) the reduction in fatality rate will begin to rapidly slow and find a bottom. Even if that bottom is now, Covid is something like 800% less likely to kill than it was in 2020 which brings it closer in line with a slightly above average flu season. Just a slight improvement in the vaccine with yearly updated boosters then that number can likely be halved again with a final resting place somewhere near an average or below average flu season.
Despite the advances, the possibility of a really nasty mutation that both avoids immune response all together while increasing severe disease is there even if it is very unlikely in any given year it probably will happen at some point. I really hope this is what we are spending research time and dollars trying to prevent more than anything else.