I'm not sure why you see bullying here? OpenAI has always worked with expert mathematicians; their unit-distance result (https://openai.com/index/model-disproves-discrete-geometry-c...) was a much deeper collaboration. They published the Navier-Stokes result early, to either benchmark or show off their new model depending on how you look at it, and they want to understand more about the negative effects which many mathematicians feel that early publication had.
If the advisory group says something like "AI is bad and nobody should use it in math", I'm pretty confident OpenAI will ignore them.
On UDC, internally they had Alexander Wei, Hongxun Wu, Chen Lijie. TCS people. As gobetweens to Daniel Litt.
On N-S I think nobody internally felt confident enough to publicly step up. So Bubeck had to wing it.
It remains to be seen which of the big names will work with whom inside the org