docs: Simplify Docker trade-offs discussion.

docs/production/deployment.md

@@ -41,14 +41,10 @@ our next major release has a reliable install experience.
 In addition to the [standard installer](./install.md), Zulip has an
 [official Docker image](https://github.com/zulip/docker-zulip).
 
-How should you decide whether to use the Docker image? Our experience
-is that Docker moderately increases the effort required to install,
-maintain and upgrade a Zulip installation, especially for system
-administrators that are not used to operating production services
-using Docker.
-
-So we recommend using the Docker image if and only if your
-organization has a preference for deploying services using Docker.
+We recommend using the Docker image only if your organization has a
+preference for deploying services using Docker. Deploying with Docker
+moderately increases the effort required to install, maintain, and
+upgrade a Zulip installation.
 
 Zulip's [backup tool][backups] supports migrating between Docker and a
 standard installation, so you can change your mind later.