Is my friend training at a McDojo?

I was talking to an old military friend the other day who has been training in BJJ for some years, and when I asked him how it was going he mentioned a few things I've heard are red flags for McDojos, but I wasn't completely sure.

• When I asked what belt he was, he said he was blue belt, but he took a break for a while, and when he came back his instructor made him start back over at white. I've never heard of this, but maybe it's a thing elsewhere?

• He had to pass through "yellow and orange" belt before getting to blue.

• They refer to it as "[instructor's name] Jiu Jitsu" as opposed to BJJ or even GJJ. I don't recall the name, but I've never heard of it before.

I brought up the McDojo thing, and he mentioned a couple of his friends warning about the same thing, but swears up and down it isn't one. What do you guys think?