Well for one, Alexei said he was opened to going to JW per Weiss (or White) on NBC Gold. He could have declined camp if he didn't want to go. But then that means no assignments and ending the season with a SB of 211 and no top 24 WR. He has done absolutely nothing that warrants being sent over Tomoki for 4CC unless Tomoki declined and he didn't.
Second Tomoki is aging out and if he wants to give JW another shot in addition to 4CC than that's his team's prerogative, he earned the right.
ETA: seriously there is nothing wrong with Alexei trying for JW. Hell Erokhov, the reigning champ, is going back to JrNats so he can go to JW too.