$exp(log n! / n)$ is the same as $(n!)^(1/n)$ which is obviously what the article is about. Why write it the complicated way? Are `exp` and `log` more us

$exp(log n! / n)$ is the same as $(n!)^(1/n)$ which is obviously what the article is about. Why write it the complicated way? Are `exp` and `log` more usable than $^n$ in some context?