There are different preferences for styles across companies, I don’t know if this is intentional, or just a normal symptom of right hand not knowing what the left is doing.
In the work I do, this happens a lot (I get to see it because I cross-over departments/courses/projects).
There will always be typos, missed QA things etc. and as long as the consistency or lack thereof doesn’t interrupt learning, you have a great product.
My passion is in making it all easier, and more efficient so that it can be a repeatable process across the board.
Giving ID’s a template for consistent course design, SME’s a writing guide and template, writers, editor’s, engineers, and QA all the same live, up to the minute guide, with everyone able to add to it (commonly used acronyms, course-specific items, etc.)

That same guide can have all the wording for Required Reading, how to introduce a video, how to instruct engineers to put a button in place, etc. Sometimes this is in the form of a storyboard template with all the headings, subheadings, etc. in it already. Of course things change throughout the life a project, that is why this guide and these templates need to be live on the cloud. Everyone is responsible for adding to it as new things come along, the ID’s set the standard and the QA folks are the owners, as they have the “last say” so to speak.

It used to be (and still is) that courses were created using a linear method, ADDIE (Analysis, Design, Development, Implementation, and Evaluation) but those days have passed, as rapid learning development makes it someone obsolete. A more iterative flow. A more Successive Approximation Model (SAM) is being used because it uses iterations, rather than with perfectly executed giant steps. SAM isn’t linear (like ADDIE), it addresses the roadblocks (product quality, meeting timelines and budgets, and managing SMEs) with smaller steps.
So, instead of trying to complete Step A, then complete Step B etc. getting delayed by super-busy reviewers and SMEs, you work through the design in cycles.
There is a good book on it called the “Leaving ADDIE for SAM field guide”  (preface here)

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