I forgot the medical term but when you have a REALLY bad liver the blood starts to take other ways to the heart to circumvent it (kollateral paths).
One path is going through your oesophagus so your venes widen very much. With the widening the risk of a rupture starts to increase very much and as soon as it does, there is nothing much that can save you.
I am not saying he got that but the description fits very much on point.
Also, chances are it will eliminate these edge-case-problems for everybody else in the future.
Since they will be able to add these missig functionalities to LibreOffice for everybody else to use too.