No, they didn't lie. Quite literally as Joker was uploading the video Mylien had already received his invite, he just never shared with the community until a few hours later on Twitter and on a podcast he spoke on, he even said "A few hours ago I received an invite from Bungie" on twitter within 30 minutes of Joker's video uploaded. Even Joker had to redact his accusation on his video if you read his comment.