What seems to be common is that at least one parent is involved. Apart from that, the two situations are not the same. No one was trying to take away Belbin's eligibility or claiming that she was being treated as eligible when she was not, because until legislation passed and she had a passport, she was not eligible for the Olympics. The Mitchells were trying to stop her from becoming eligible in time, so that their son and his partner could skate at the Olympics. And while the emphasis was on B/A, it was also to block Zavozin, because Matthews/Zavozin were more direct competition for Galler-Rabinowitz/Mitchell, and G-R/M would have realistically needed two teams above them to be ineligible.
The ISA *has* already chose its Sochi representative, ie, whoever earned a spot at Nebelhorn, or Han.