I am not an expert but your understanding sounds correct. I have read at multiple forums that a cancellation of visa application is not a denial/refusal. And what you narrated falls in this category.
Biometrics are required for PR. WP biometrics will not be acceptable for PR applications.
IRCC link to check if you need to give biometrics:
Check here:
https://ircc.canada.ca/english/visit/biometrics.asp