Sand Giants in South Ro are allied with Drybones

[Jimjam]

Sand Giants in South Ro are treating Dry bone skeletons of allies in combat, i.e. they won't run at low hp when there is a dryboner nearby.

I haven't found any evidence this isn't classic, but it has surprised me and I haven't found any evidence it is classic either.

Is there any evidence to support this apparently unusual behaviour? Is this also why giants are attacking merchants? They think like undead??

[Passenger]

I'm not sure about the undead social/flee mechanics, but it appears the interaction between the Sand Giants and the merchants is intentional (https://www.project1999.com/forums/showthread.php?t=98585):
Sundawg: The Sand Giants and Dark Bargainers will war over control of South Ro