Yeah, I think since the hybrids hold their value a bit better they disproportionately survive large repairs & small collisions that might scrap the gas-only versions.
Here is the crack. Now that it has been hot-tanked, pressure tested, and marked I feel a bit silly not seeing it before:
For perspective here is the cylinder that was clearly getting water:
And the corresponding chamber:
Close up shows some clear red flags (like how the edge of that exhaust valve has been steam-cleaned, but not the whole thing):
To be fair to myself, I did tell the machine shop to be extra vigilant when pressure testing that head because the head gasket didn't look bad enough to blow coolant out of every seal. Still, I wish I could get the last 3 weeks back...