This explanation sounds nice until you start thinking about other countries which experienced famine in the last century and don’t look anything like china...
As for the others, the famines there were usually caused by external forces that have stopped being (e.g. foreign occupation, etc), so not the same.
Here's a cut n paste
Chinese scholars had kept count of 1,828 instances of famine from 108 BC to 1911 in one province or another—an average of close to one famine per year.[50] From 1333 to 1337 a terrible famine killed 6 million Chinese. The four famines of 1810, 1811, 1846, and 1849 are said to have killed no fewer than 45 million people.[51]
Japan experienced more than 130 famines between 1603 and 1868.[52]
More widely crop failure and famine are very different things. Consider, Ireland was exporting food during the Irish potato famine.
(1) China's recent famine is why it is extremely strict.
(2) Modern famines are man-made.
The parent post seems to be responding to (1).
Sibling posts appear to think the parent post is addressing (2)?