Mr van der Sanden died. He was a member of the Dutch parliament and, he was both a journalist and a politician. His relevance was mostly in politics and not in journalism.
Adding a date of death is easy. Given that "member of parliament" is mostly used as a meta value, it is obvious that it should be taken away. Adding a new item for "member of the Dutch parliament" is easy as well.
The descriptions I will not touch with a bargepole. For Mr van der Sanden it is not wrong but it is not complete and it will always be in need of more finetuning. It is the one aspect of Wikidata that is without hope of it ever being good enough. Compare the difference with automated descriptions..