Why a match against one job beats a general score
A CV can be well written and still miss the job in front of you. Hiring teams read against the posting: they look for the must-haves first, then for proof that you used them. A general resume score cannot tell you which of those you are missing, because it never saw the job.
That is why the match starts from the posting, not from a template. If the employer asks for stakeholder management and your CV only says you "worked with business teams", a recruiter searching their system may not find you. The report shows that gap in plain terms, next to the requirement it belongs to.
The score is part measured and part judged. Coverage of the requirements is measured against your CV's text and weighted by how much the posting stresses each one. That is combined with an AI assessment of how well your experience fits. Because the measured part is tied to your text, running the same CV again gives a consistent result. The full method is on how the match score works.
What the score cannot do is promise an interview. Companies configure their systems differently and people make the final call. What it can do is make sure the requirements you genuinely meet are easy to find.