[_a_a_a_]

> Accessing a view will also be slower than accessing an “original” table since the view needs to be aggregated.

Where does it say anything needs aggregating. You can have a view that exists just for security.

> Also, using views and stored procedures with source control is a pain. Deploying these into prod is also much more cumbersome than just normal backend code.

Uh? This is normal backend code.