@BenjaminHCCarr This is something I have seen a lot of in isotope systems: great work on a narrow subject that they try and sell with a shakey story.
It always frustrates me. Looks like really solid work here on the paleomagnetics, but that isn't as exciting a story. Papers need a story to get published, so they swing for the fences. The H escape stuff is just not convincing to me and I don't think they explore the literature and theories on oxygenation as well as they did the paleomagnetism.