What distinguishes Mālik’s iʿtikāf route from the shorter Hishām route?

The Meeting Condition in Muʿanʿan Hadith: Muslim’s Rejoinder and Route Comparison

• Hishām takes it from Abū Salamah rather than his father
• Mālik inserts ʿUmar ibn ʿAbd al-ʿAzīz before ʿUrwah
• ʿUrwah and ʿĀʾishah are absent altogether
• ʿAmrah appears between ʿUrwah and ʿĀʾishah