I think it kinda needs to be noted that the article linked (https://academic.oup.com/cid/article-abstract/72/2/285/5741633 https://academic.oup.com/cid/article-

I think it kinda needs to be noted that the article linked (https://academic.oup.com/cid/article-abstract/72/2/285/5741633 https://academic.oup.com/cid/article-abstract/72/2/285/57416...) does not consider cases like yours (a quickly administered booster shot after getting a cut), only the presence of a regular 10-20 year booster schedule. (They only use data of schedule exists/does not exist, and WHO data of tetanus & diphtheria cases, not whether booster was administered.) In other words, if getting the irregular tetanus booster shot is a thing that saves people today, it wouldn't show in the data.