Event Source connection should be available for regular kube services

Description of problem:

When Serverless is installed it's possible to bind a Knative Service (through the blue arrow) to an event source. This option is not available for regular kubernetes Service. However, event source can send events directly to kube services. Or there can be a regular Deployment sending events to kube service via SinkBinding.

This option is not available. Attaching screenshot.

Prerequisites (if any, like setup, operators/versions):

Steps to Reproduce

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Actual results:

Expected results:

Reproducibility (Always/Intermittent/Only Once):

Build Details:

Additional info: