The call to action web part is a nice addition to web part options.
However, we have had feedback from our users that they expected that they would be able to click anywhere on the object (i.e. including the image) not just the 'call to action button' in order to activate the link.

This is essentially how Hero and Image web parts work, so it's really no surprise this was what our users expected. Their mental model is now telling them anything associated with the call to action should be selectable.
Grateful if you could add this to the backlog for improvements to the call to action web part.