So you knew the status of all his offers? I can't really trust your "sources" as you claim that Brock still had an Iowa offer, when I know he didn't. You also said Nebraska didn't want Johnson. First you don't have any sources and second I know you have no clue what the status of Waggoners offers were at the beginning of Dec.
Brock had an offer to play defense. That's been discussed many times on here
Waggoner's recruitment was well known. If you think people wanted him at the end go for it. The people who aren't idiots know what happened