Poor morals isn't the same as poor judgement. Clearly he has had very very good business and technical judgement over the years.
I mean, even before you get into her being a spy, giving company secrets to an affair partner generally isn't very good business judgment either.
Whether you think that outweighs everything else is a distinct argument, but the two things aren't mutually exclusive.
Dating a spy is not poor judgment? And sorry, if you're running of the world's most valuable and strategically important companies, and if an attractive woman with hazy business connections appears out of the blue in your orbit, you really ought to entertain the possibility.
Wasn't it Anthropic or OpenAI that sent a warning about this exact possibility to regular employees?