The official page does not promise a date. The steps are application and fee, vetting, USCIS instructions and evidence, the gift when instructed, and then immigrant processing subject to visa availability. Each step takes the time it takes.
Fix the order of events
Order the plan around the steps the official page names, while treating its timing as an estimate rather than a guarantee. Hypothetical example: a Lévis financial-services executive is offered a U.S. role starting in four months and is told the Gold Card is fast.
Fast is a relative claim, not a date. Application and the nonrefundable processing fee come first; USCIS then instructs the applicant to submit Form I-140G and supporting documents; vetting follows; after successful vetting the gift is made when instructed; then EB-1 or EB-2 immigrant processing requires an available visa number. The official page currently says the process should take weeks, but it does not promise completion by a particular date.
If the assigned category is backlogged on the Visa Bulletin, the wait is the bulletin's, not the programme's. She should ask the employer what happens if the start date slips, avoid resigning from her Lévis position until a visa is issued, and keep a note of the official terms she relied on at each step, since the page may change between application and gift.