I agree we could surmise that at some point the engineers thought it was important to include balance lines, but it's just an assumption. If the issue is oil aeration in the feed passages that's fine, but I don't see how that's a localized problem that the rest of the engine wouldn't see as well. I also don't see how balancing pressure from head to head would eliminate aeration, but again there is a lot I don't know.
When companies say they have a fix for an issue, it would seem that they have a full understanding of the issue their product addresses, and it would be cool to get more detailed information from Archetype Racing or
@EIGHTLUG himself.
It is also possible that there is no technical info to share because Archetype Racing saw the FP350S crate engine had the balance lines and thought "hey that's easy to recreate and sell to morons like 2016GTPP Guy, lets make some money". For which I do not begrudge them one bit, I buy things I don't need all the time. On the other hand, if there is solid evidence that all the DOHC mod motors could reap a reliability benefit from this, it should be displayed/discussed. The end result would be this product exploding in popularity to be one of those must have items like a passenger side catch can. Everyone on this site and half the people over on Mustang6g would be installing them.