Makes me wonder if just his sample is broken or rest of the review industry didn't notice/doesn't measure for efficiency properly.
GN covers some interesting details with their usual rigor: https://youtu.be/We71eXwKODw overall power consumption seems about as expected though there are some concerning transients
Linus Tech Tips also reported really strange power draws depending on which monitor was plugged in. Seems like these cards have some bugs that still need ironing out.
They didn't take off the heatsink and show the dies. Is there some kind of restriction on reviewers?
I think between when you posted this and now GN put up a teardown video of at least one of the cards. I think most other channels leave the teardown lane for Gamers Nexus just because they are really good about them.