The giant camel hunters

This is from Reuters:

Swiss researchers have discovered the 100,000-year-old remains of a previously unknown giant camel species in central Syria.

The big camel was "12 feet tall," which they are comparing to giraffes and elephants. In other words, megafauna. Megafauna hunted by humans:

A group of humans apparently killed the camel while it was drinking from a spring, said Professor [Jean-Marie Le] Tensorer, adding that human remains from the same period were discovered nearby at the once water-rich site.
A human bone, taken to Switzerland for anthropological analysis, was of a Homo sapiens, or modern man, the professor said, but a tooth was similar to that of a Neanderthal. "We dont know yet what it is exactly," he said. "Do we have a very old Homo sapiens or a Neanderthal?"

Another version of the report at has this:

Kowm, the site where the remains were discovered along with flint and stone weapons, is a 20-km (14 mile) wide gap between two mountain ranges that had a number of springs.
The site, which was first surveyed in the 1960s and where evidence of a 1 million-year-old human settlement has been found, is considered a "reference for early prehistory in the Near East", Basel University said in a recent research paper.
It attracted migrating herds, such as antelope, and man. Archaeological layers covering a period of several hundreds of thousands of years were discovered, which is unusual for such an open site, he said.

OK. Now, if either modern humans or Neandertals could hunt and kill giant camels in Syria, why exactly do we need a "southern route" theory?