Yes it was. We can argue about why it was which is what you’re doing, but it was less than 30. There was a spike in deaths before 30 and after 55. Even still 55 is a much lower number than 80.
The exact cause of the statistic isn’t really the point though, the point is that just because humanity did something for thousands of years does not mean it was ok. Being a human was pretty damn awful for a very long time for a number of reasons including disease which is the point of this thread, that raw milk carries disease.