Point-in-time versus continuous
Every deploy, every new SaaS integration, every forgotten subdomain moves the surface. Recurring, authorized verification can help identify new exposure; scope and cadence should match your environment.
It does not replace the human test
A skilled human tester still finds the creative, business-logic flaws. Recurring automated checks complement a scoped professional assessment; they do not replace it.
Takeaway. Test at the speed your surface changes, not at the speed of your procurement cycle.