unsubstantiated claim regarding how dapr reduces resource consumption for an application

**Describe the issue**
The docs at the URL below include a note that since "Since Dapr is intended to do much of the I/O heavy lifting for your app, the resources given to Dapr drastically reduce the resource allocations for the application."

However, it's not clear to me how such a conclusion was reached. My understanding is that a the application still needs to communicate with dapr over the (local) network.

**URL of the docs**
https://docs.dapr.io/operations/hosting/kubernetes/kubernetes-production/

**Expected content**
Some evidence to back up this claim would be useful. Also, exactly what 'drastically' means could be more clearly defined.

**Additional context**
I'd like to believe the claim, but as is, it is made without much evidence.