Not really a C9 fan, but I can probably elaborate as to what is going on.
Looking at the rest of NA, big changes have happened pretty much everywhere barring CLG (who is one of those teams that I think may regret it later). Teams have invested heavily in korean/EU imports (both if you count ryu) and thus team synergy is going to be rather interesting. Instead of copying what most of the region has done, C9 instead decided to promote from within and nab contractz off their sister team before selling the spot/other 4 "unneeded" contracts (balls/hai/altec/lemon) for $2.5 million, essentally keeping the useful bits while also making $2m for a half split of work. While some people (mostly fans of meteos) may heavily criticize the move, what C9 did was complete and utter brilliance and is probably the purest example of how these "sister teams" in challenger should work for the LCS teams. Much like MLB/NHL, C9 used the minor leagues to try out a potential roster move. Instead of putting contractz onto the team immediately, they instead chose to pair him with 3 veteran c9 players familiar with the system (plus altec) to gauge his strength. If it worked, they could add him to the roster with no real "risk" to the main team, if it failed then they could move on from it and not be any worse off.
Ultimately, C9 adding contractz benefits everyone and noone simultaneously. While it means that NA is going to get tougher (as contractz is not only better right now as a player than meteos but has more potential), it also shows how valuable challenger spots can be to bigger teams. Instead of risking their own LCS spot to try out new players, teams can just send them to challenger where the risk there is very minimal.