Agreed. Last time I was sick I said my fevers were pushing up to 100 and they said it's not a concern until 100.4. felt like an odd number. It's 38 C. Because my dramatic undersampling of my temperature was 0.4 degrees lower than their rounded threshold through some unit conversions, I clearly didn't have a fever. That's not a very human touch
I feel like it's possible you misheard/misremember this, considering the temperature for concern is 104.