Nvidia AI gpu’s don’t have <16GB of RAM. They have 48+. Some have over 180GB. They were talking about desktop GPUs, the RTX series. It makes no sense to congratulate Chinese GPU makers for having 16GB of RAM and being angry at Nvidia for having 188GB - not a typo, they have one hundred and eighty-eight GB of RAM - like their H100 NVL.
The <16GB complaint is a common and long standing complaint about their desktop GPUs.