As I understand it there has been a noticeable dip (~25%) in the last few decades. I don't know if that's a crisis, but it's been theorized to be caused by any number of things, including a less active lifestyle, stress, and endocrine disruptors in the environment. Given the range of possible causes, "Just throw more Testosterone at it" seems like a poor initial solution.

Well when a 30-year old finds out that it's not that rare for a 70-year old to have "higher T" naturally compared to younger men on average, I guess that could trigger their own personal "crisis" ;)

Plenty who are 70 are not in the Viagra generation yet either.