The cover-up and spy angle doomed him
Many argue the affairs alone weren't fatal; lying to the board or PR about it, a subordinate relationship, and ties to a suspected Chinese asset amid export-control evasion made him an untenable risk.
Nvidia loses its irreplaceable visionary
Others fear Nvidia without its hands-on founder will stagnate like Intel after Grove, while some counter that its chips and CUDA ecosystem carry it regardless.
Personal life shouldn't matter / conspiracy
A minority says affairs are none of the company's business or suspects AI rivals or politics engineered the ouster, a view others push back on hard.