To me, I don't even bother with 'legitimate' or not. To many fans, maybe the only 'legitimate New Order' was from 1981 till Gillian left. About the people involved, this is as close to any reunion people can get, even if many people truly say 'This is not the real New Order'.
I know some people are saying 'Hooky's not in it, so it's not New Order', or 'I won't bother to see it because Hooky's not going to be there'. OK, then fine, do not go if you think that.
The Guardian article/interview from July of this year says " Peter Hook and his bandmates can barely bring themselves to speak to each other. They reveal where it all went wrong … separately", but it's obvious that it's not like all 4 (or 5, if you include Phil) aren't speaking to each other. Later in that article, it says
" you're standing outside the Cheshire farmhouse Stephen Morris shares with Gilbert, New Order's fourth member and his wife, where all the members bar Hook are gathered."
.... "Everyone's entitled to start a tribute band," Sumner says, as he gets ready to head home. "Peter could have done a lot of things and we could still be friends, but now he's taking our actual heritage just like he took the Haçienda. It's hardly surprising we're so angry about it."
Bernard is on speaking terms with Steve, Phil, Gillian, as well as the other two people in BL. He even plays in BL with Steve and Phil. Steve is still married to Gillian and has reunited with her (musically) as The Other Two. Like I said, he is also in BL. So the rest of them seem to get along fine, and they also play/make music with each other like I've mentioned above.
My point is, 'How is it that the rest of them get along fine and play music together, but not with Hooky?'