The article says 8 members are replaced every 2 years and the terms are 6 years long. Between 1/4 or 1/2 of them would have been replaced during this presidency, and whoever gets placed now will start to be replaced by the next administration.
As for China: They’re not known for having independent advisory committees overseeing government decisions. They’re definitely not known for inviting foreigners to come join their government to oversee their spending. So if you’re implying these people are at risk of going to China to serve the same role, that’s way off the mark.