That's probably because she is last year's national champion and still does not have a Worlds qualifying score (SP TES =28, FS TES=48). Here are LaCoste's TES scores from last season's events.Amelie Lacoste did the FS only at the Quebec summer competition. Yet she has already been assigned to the US International "B" event in SLC. I'm sure this won't be the only example of a deviation from the "standards".
Worlds (16th) SP 25.80, FS 44.89
4C (7th) SP 25.84, FS 43.84
Skate Canada (7th) SP 26.71, FS 43.22
Rostlecom (8th) SP 25.03, FS 46.98
World Team Trophy SP 23.72 FS 45-05
In each case she was at least one big error from achieving the Worlds qualifying score. She does also have one GP assignment this fall (Canada) but I guess they figure she needs as many tries as she can get to lay down a clean SP and reasonably clean FS.
On the one hand, last year's consistently weak performances make one think "why bother?" On the other hand, the next ranked Canadian lady is Phaneuf and she not only needs a qualifying score but will miss the entire fall season recovering from surgery.