I didn't say it couldn't be magnetic. I said they provided no evidence to show it. MGO's (or any doped graphene) may be magnetic, but they won't necessarily be.

I take issue with any claim that provides zero evidence. Many of these claims go against a mountain of evidence to the contrary. That doesn't make it not true, but if you want to overturn a ton of other evidence, you better bring some of your own. Like, actual measurements, not pure speculation because a couple facts might fit some unknowns.