Hopefully she will not develop gastroenteritis or anything more sinister
I don't see any reason why you would need the worry about such a thing.
Pasteurised eggs are completely safe for consumption. They're usually used instead of raw eggs, because of some safety concerns with the latter, especially for vulnerable groups, such as very young children and the eldery.
The process of
pasteurization heats the product, so that most pathogens are destroyed, without affecting the quality of the product itself.
There's, of course, always the chance that one could get some illness from eating any food, but from a scientific perspective the vegetables on a salad you have on-board are just as much a risk as this egg mix.
I can be quite the shock to taste something very different than expected (we all have experienced the situation, some time in our lives). All that happened was that it was a somewhat more exotic product.
To me, the compensation offered seems generous and taking into account that it was experienced somewhat more visceral than say, mixing up coffee and tea. In the end, the extent of 'harm' is rather similar.