@Daniel we use short knowledge checks after most topics, basically as @jason.moore suggested, when we want to emphasize specific point(s) that we want people to memorize - like “if there is one thing you remember from this presentation it should be ...”
An additional effect of this approach is when the learner is getting distracted, they will only need to re-watch the last video to find the answer and continue with the course.
With knowledge checks combining questions from several modules, the “penalty” for loosing focus is higher, as they may need to re-watch a bigger set of materials to be able to answer questions and progress.
Of course, one can argue that the latter would encourage more attention, but I do prefer the former as nowadays people are getting distracted easily and often, and we want to make the learning as seamless as possible (we create product training for our customers, so they don’t have to complete any of if, and if it would be hard they probably wouldn’t bother too much).
For those who want to get really deep and have a proof of their skills, we have a certification that is separate from courses, and there we have questions covering all aspects of using the product (+ a hands-on assignment).
And to the concerns of your team, in the feedback we’ve been receiving from our users we got some requests for adding even more knowledge checks in our courses :) of course your audience may have different preferences.