Yeah, that was my intuition and it’s how my CAFS game played out. Though the last thing I saw from @sharpobject on the topic said:
Death Rites, Hooded Executioner, and Obliterate don’t hit immortal at all.
with a little follow up a few posts later in:
Also note that Hooded Ex isn’t a Sacrifice effect, but I’m pretty sure it still skips Mox. Which lends credence to the idea the Obliterate does as well.