With the emergence of SARS-CoV-2 (the virus that causes COVID-19), flu activity during 2021-2022 was lower than observed before the pandemic. Compared with flu seasons prior to pandemic, the 2021–2022 flu season was mild and occurred in two waves, with a higher number of hospitalizations in the second wave.
You picked a year where covid protocol statistically skewed the data lower than normal
https://www.cdc.gov/flu-burden/php/data-vis/2021-2022.html
Normal per year is typically around 20k deaths, but can go up to 50k
https://www.cdc.gov/flu-burden/php/data-vis/past-seasons.html
Or maybe you didn’t read:
759x52= 39,468/ year which is around the flu but higher, makes sense since covid is newer. That’s also assuming that the week in question is not an anomaly, which we don’t know.
My argument is significantly stronger than your data handling