In your 17 years, you must have heard the term meritocracy. It’s not that the 17 years doesn’t matter - I’m sure it contributes to a higher cultural integration score.
I have a friend from the subcontinent who after being a PR for 10 years was asked to apply for citizenship (multiple times). He ticked all the boxes, husband and wife both had strong degrees, strong finances, a second property
here, strong family ties, young son and daughter... but what really got him noticed, he was actively involved and well connected in the local community & grassroots organizations.