A paddle is part of mixing dough in the baking pan. Its mark is an ownership tradeoff, and no feature here gives us grounds to promise a hole-free loaf.
What a different paddle changes
Breville uses a collapsible kneading paddle. Some machines give a signal at which paddle removal is an optional step. These are different approaches, and neither should be advertised as a guaranteed result without testing. Removing a paddle also asks you to be present and follow the manual's handling precautions.
Do not force a stuck part
Allow the appliance and parts to reach the condition specified by the manufacturer before cleaning. Follow its soaking and removal directions rather than prying a coated pan with a metal tool. Check the paddle location before slicing a loaf.
Cleaning instructions are model-specific
Do not assume that a removable pan or paddle is dishwasher-safe. Do not immerse the appliance body. Use the exact manual for permitted washing methods, tools and detergents. Claims about one machine's removable parts do not transfer to another model.
Separate cosmetic marks from a recurring fault
A normal paddle indentation is different from a paddle that repeatedly fails to turn or a shaft that does not behave as the instructions describe. Keep the model number and purchase details for support. Do not modify the drive or bypass a safety feature to finish a batch.
If paddle marks are your deciding factor
Compare the documented paddle design and any removal signal. Also consider using a dough-only workflow and baking in another pan. That changes the job more substantially than choosing a marketing promise about a nearly invisible hole.