The WordPress tax
Every WordPress site is a running negotiation with plugins, PHP versions, and a database that was designed in 2003. You do not own the stack, the stack owns you.
What Firestore changes
Content becomes documents. Reads are indexed and globally cached. Writes are rules-gated at the edge. There is no server to patch, no plugin to break, no theme to fight.
The result
A CMS where the content team ships in the admin panel and the engineering team never gets paged at 2am because a plugin auto-updated. That is the whole pitch.