The phrasing is definitely weird. "Germany's greatest challenge since the rise of Nazism" seems a lot more appropriate.
Also, this is what she said, only then NOT to implement any mandatory stay-at-home policies.
This coronavirus is certainly causing problems, but this type of statement cheapens what Germans after WW2 went through.
The only weird thing is your need to rephrase it out of some "offense on behalf of another" reflex.