Quest XP Changes for Update 20

[Oxarhamar]

It occurs to me that the "length" of quest the xp formula uses may not be time at all, but physical distance you have to run. What other explanation for Hold for Reinforcements?

This idle thought crashes and burns on closer scrutiny: Kobold Assault and Swiped Signet have essentially the same base xp, and so do Gladewatch Outpost and Dead Girl's Spellbook.

But I can't figure out for the life of me how Hold For Reinforcements has the base XP it has if it's based in any way on a formula.

that those who are responsible for assigning XP must not be using a standardized system