Static pages are a strength for marketing sites
Most small-business websites do not need authenticated dashboards or per-user data. Static rendering gives the site excellent reliability, easy preview deploys, and fast first loads on mobile networks.
Where dynamic behavior belongs
The only default mutation is the contact form. That behavior belongs in a Firebase Cloud Function so the marketing site can remain simple while still giving the business a secure inquiry pipeline.
Launch benefit
The customer can start with static hosting, then enable the full contact workflow when the backend destination and email provider are ready.