According to the article, they do just such a thing! The 'L1 cache' as you call it for middle eastern dry climate crops was in Aleppo, Syria, which is no longer

According to the article, they do just such a thing! The 'L1 cache' as you call it for middle eastern dry climate crops was in Aleppo, Syria, which is no longer able to perform its function of multiplying and redistributing the seed.