I’m willing to assume Reggie got a crap edit. We saw just 40 minutes, but they were baking for five hours, plus judging, filming their interviews, and who knows what else. That’s a lot of time for anyone, let alone kids in a high pressure baking competition. Anyone, even adults, would have their moments of being less than perfect.
We saw barley saw two minutes of Reggie being a little rude. I doubt Sam and Greyson were perfect happy angels the whole time either.