Nope, that's not a good explanation. German measures we're about the same as the in Western and Southern european nations, even too late. Most others were 2 weeks earlier.

The best explanation is that Germany and similar countries just have proper healthcare for seniors, esp. the retirement homes. The protected the vulnerable better. The bad countries are all united in cost cuts in those homes and healthcare. France, Belgium, UK, Spain, NL, Italy, US, Brazil. Belgium had the highest IFR due to not enough masks for caregivers. They had to share it. Spain et al also destroyed their previously excellent systems with the recent rightwing governments.

Socialism is apparently the best cure for COVID-19. Even if Germany is extremely rightwing, they still have proper healthcare and caregiving infrastructure.