I think it's more about draining the resources of a museum with costly litigation, which is the typical MO.
One of the most prominent witnesses in the ICC Genocide case against Israel is a British Palestinian doctor who only recently won a 2 year long litigation battle against "UK lawyers for Israel" in January, which UKLFI is trying to reopen again this past March - each legal battle costs him about £150,000, not to mention time and money from his actual job of being a doctor.