My dad died of leukemia and I can confirm there was nothing harder in my life then visiting him in hospital and watching him die. Its something really scary to see and tbh I get why she used her work as an excuse  to not go. Sometimes I did the same. But it was always only excuse. If she didn't spend enough time with him during his last moments it was because she was scared, saying it was work is just comfortable lie to make her feel less guilty and temporarily shut the regrets. Which proves (al