That is true. And they must be much less densely populated, because they are not so social. But even so, any species that only has 30,000 members and lives in a relatively limited geographic range must always be at risk of a slight problem causing extinction. Mammoths and Cave Bears, for example, who had been around for quite a long time, and perished at the end of the last ice age.
Should they all get bit by rabid foxes and die we could easily repopulate the area.