I have no dog here, and I didn’t know anything about her husband. Nor do I really care.
But as a concept, and this could be anyone asking any such question, it doesn't disallow it, but it makes it quite hollow. It would be like asking her if she is comfortable part of her household income is coming from a person with an appaling employment rights record. A basic cheap shot. And journalists private lives do come into it, unfortunate or not, if it concerns accountsbility and pretense of integrity, and perceived hypocrisy can be biggie.
Either way, while I have zero issue with the question, imo it was hardly a big or significant one that nobody has ever asked. She wasn't in this case exercising journalistic integrity or championing anything, she was just trotting out a clichéd overused go-to bit of contraryism for something for people to latch onto, to maintain a bit of relevance. Which, by the number of pages on it, has worked.
She won't be the first or last to do it, Abu Dhabi and MCC won't be the first or last subjects of such questions either. There will always be these issues, these investments, people will always piggyback them for their careers including journalists. The ones that Really care about it and try meaningfully tackle it, tend to be ones you don't hear that much from imo.