As the guy says, they aren't tightening requirements. So this has nothing to do with students or expat workers. They're talking about making things easier for skilled workers with little formal education (i.e. no college degree)--otherwise there wouldn't be the reference to 10 years of work experience, which is what you usually need for a working visa if you don't have a degree. That means caregivers, factory workers, those types.

The government has an incentive to make it possible for these people to be rushed in the door if they speak Japanese, since there is a strong demand for workers in many fields which today's Japanese avoid. The government has no incentive to close the door to students (who are essentially bringing money into the economy) and well-educated foreigners (teachers, professionals etc).