> In the 1970s, increasing incomes in urban areas stimulated the demand for meat and dairy products, but by the early 1980s government programs were only partially successful in increasing domestic production. Bedouin continued to raise a large number of sheep and goats. Payments for increased flocks, however, had not resulted in a proportionate increase of animals for slaughter. Some commercial feedlots for sheep and cattle had been established as well as a few modern ranches, but by the early 1980s, much of the meat consumed was imported. Although the meat supply was still largely imported in the early 1990s, domestic production of meat had grown by 33 percent between 1984 and 1990, from 101,000 tons to 134,000 tons. This increase, however, masked the dominant role of traditional farms in supplying meat. Although new projects accounted for some of the rapid growth during the 1980s, a sharp decline of roughly 74 percent in beef stock production by specialized projects during 1989 resulted in only a 15 percent fall in meat output. This reversal also highlighted the problems in introducing modern commercial livestock-rearing techniques to the Kingdom. [1]
Yes they don't have the capability to rear enough livestock so they have to import. Saudi Arabia existed before large scale imports like this, the problem is our (read: economically powerful countries) expectations are that we can get whatever we want whenever we want. When that happens tragedies like this occur.
[1] https://en.wikipedia.org/wiki/Agriculture_in_Saudi_Arabia