There's no bad propaganda when it comes to persuading people to get vaccinated. The alternative is the mess we're in now because people hesitate to get vaccinated. This study uses HIV to model sars mutation. HIV is highly mutagenic :
https://www.google.com/search?q=hiv+mutation+rate&oq=hiv+mutation+rate&aqs=chrome.0.0i512l6j0i22i30l4.1834j0j7&sourceid=chrome&ie=UTF-8
sar-cov2 is less mutagenic than the flu and far less than HIV:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7539923/
i.e. based on the PLOS study and the one above:
1. PLOS study constantly uses the word "risk" and "may", i.e. the authors don't know the actual probabilities of escape and use a mathematical model based on a far more mutagenic virus, HIV.
2. even if there's a low threshold for the virus to mutate, most of the mutations are not viable
3. so far we've seen only 4 dominant strains, the rest are being outcompeted : https://www.google.com/search?q=how+many+dominant+mutations+of+covid+are+there
4. It makes more logical sense to me that if your unvaccinated body takes 10 days to mount a peak immune response (as mentioned in the PLOS study), that still gives the virus more time to mutate even if there are no pressures to mutate. There's lots of missing data in your study, particularly what exactly is the mutation rate for sars-cov-2 in vaccinated vs unvaccinated populations? But if we simply look at where the dominant mutations have come from so far, it's not from countries with high vaccination rates like Israel, New Zealand, or from asian countries that take serious measures at curbing the spread of the virus, singapore, japan, korea, china.