They tried to do the whole send the JGPF finalist thing last year by opting to send Vanessa Lam, who made it to JGPF, rather than Angela Wang, who actually finished one place above her. Vanessa ended up finishing 13th.
I don't think it was such a terrible thing to spread the wealth as far as international events. In any case, the trio still did their job for the most part getting 3 spots of junior worlds next year as well as getting the maximum number of spots for JGP.
As for Polina. No harm, no foul. She's still pretty young! She'll get some great experience on the JGP and take it from there.