Probably. Our security team insists that we purchase ourname.[everything]. Not a stretch to imagine that the risk / cyber teams of those large organisations were thinking along the same lines.
I think that’s true but I also think maybe some companies set this up hoping to differentiate their brand with a slick branded TLD before realizing that no one wants to use it. To the general public a .com gives you trust.
I would hazard to guess that plenty of spam filters would nope these too.