Unpopular decision, but it actually worked out well for a while! Last season both P/J and Y/Z made the GPF with Y/Z getting silver, and then going on to win 4th at Worlds. This year I don't think it was an issue with the teams so much as the programs. Also let's not forget that Hao Zhang is ancient as far as pairs skaters go and placing 7th at Worlds at his age (33 or 36 depending on who you ask) is a huge accomplishment too.
I thought Zhang turns 34 this year... (Aljona, Hao and Ondrej are of the same age)