There have been several world quests that don’t award rep. In some instances, the rep is greyed out (despite the WQ being a new spawn and not yet completed but any other characters in a warband). In other instances, the WQ rep is white (available to be earned) and/or grants rep as the reward.
For example:
Beledar’s Blessing spawned this morning (2024-09-09), a climbing WQ in western Hallowfall. This WQ showed 100 Hallowfall Arathi reputation as the bonus reward, however it did NOT grant ANY rep from either the completion or the reward, resulting in a total loss of 150 rep from this one WQ.
This appears to be an issue with many/most of the WQs that were first introduced in Dragonflight, as well as a few others at random, in all four TWW zones.