I don't think the adminstrators or members of Bitcointalk has a problem with this, they aren't scared because in the past, similar platform have tried dethroning Bitcointalk but couldn't success. The problem they should be concerned with, is the level of spam they'll be tacking over the couple of few weeks this campaign will be active. I just went through the list of signature participants and I must say, I'm not impressed. Maybe in the coming few weeks more quality members will engage with the campaign without spamming the forum.

What make a signature campaign stand out apart from the obvious which is their payrate, is the level/number of quality participants participating in that campaign. The campaign already have a quality, well reputed manager, what's left now is quality of posts from participates.