As it stands, there is a difference in how styles behave when they come through a project or via proposal builder and are exported into the template.
With projects, you can do style clean-up with the answer style and also benefit from matching style names in the platform/project content and the template to have more complex formatting come through as needed. This is not the case with Proposal Builder where a set answer style overrides all specifically styled materials and the style match behavior we see in projects does not occur - you have to set-up a template where there is not a set answer style but you use 'Application font' instead. Therefore we cannot have the style clean-up benefit and there is increased requirement to have everything specifically styled in the PB content.
A consistent ruleset would be beneficial, promote ease of understanding, and reduce Proposal Builder setup lift.