OC fates have value as something you can do between CEs for a little extra.

I agree, they're always dead too quick, regardless of what the underlying problem is on the back end. I'm not entirely convinced it is just a scaling problem though. Because there's one fate in the green/cave area that seems to have sufficient HP. But just that one. Everything else is consistently over in 5 seconds before most people can even reach it.

I thought fate scaling was 1) one variable for the whole zone (not per fate) and 2) dependent on the number of people in the zone, not just the ones who completed the fate? Otherwise why would we notice hunt trains having a negative effect on fate parties in the regular game areas?