I don't think Gaby should be prevented to go to whatever competition, but she needs perfect jumps, similar to Tutkamisheva. Liza wouldn't have qualified for the worlds, if she weren't close to perfect t previous competitions . And Russia's field is so deep.
The problems for Canada is having only one spot. May the best athlete get that spot!
I think they need to go with the skater that performs best at Nationals, no skater on their current roster of active ladies has a resume that justifies ignoring Nationals results.