It could be that they wanted design information and other details from him, and were going to use those to build up domestic manufacturing alongside import restrictions.
It's hard to say from the outside what the goals would be - pushing him in certain directions, extracting intel, etc.
> It could be that they wanted design information and other details from him
For this it would be much easier if the Chinese spies banged Nvidia engineers.
More likely that she was given devices to plant / message him zero day PDFs or whatever.