Yes. I would think routine maintenance would include a home owner opening these panels to check for leaks or any adverse conditions (corrosion on burners, debris etc… Same as opening the roof hatch to inspect the attic for roof leaks.
It is intended to be vague so you can as a intelligent person you have ability make the right choice in the field without fear of lost safety,destruction of property,or breaking from SOP.
I’d venture to say that most homeowners do not remove panels to inspect the burners or anything else. Most only change the filter. And many don’t even do that. I’ve seen some disgusting filters.