The following quests appear under the Quests heading for The Maw, but are unobtainable: -

Quest #62838*
Soulful Recovery
https://shadowlands.wowhead.com/quest=62838/soulful-recovery

Quest #60134*
A Tauren in Trade
https://shadowlands.wowhead.com/quest=60134/a-tauren-in-trade

These quests should probably be removed from the list as it is likely they were removed before Shadowlands was launched.