New Matching lay-out

I feel like this "enhanced" version of the matching knowledge check activity hasn't been tested with many users, or for various types of content. Also, I have a lot of trouble seeing how it can be considered intuitive to allow matching by either dragging or using the drop-down.

The numbered boxes on the left can be very confusing. Let's say the activity is to put steps in order, "Step 1"  would be assignated to a number at random. To me, that seems only confusing, and not intuitive at all for the user.

Giving no context, I made a test with a few people around me, and all of them choosed to match elements by dragging them. None of them used the drop-downs first, but they wondered or looked confused about what the numbers were there for. After having matched the elements by dragging, some clicked on the drop-downs in confusion, wondering if another action was needed before clicking Submit. 

I guess that the drop-downs are more about accessibility than being intuitive, but then why is it not an option we can check/uncheck? Accessibility features are relevant, but I expect them to be optional. I much prefer being able to choose what accessibility features I want enabled, like on Storyline.

If the goal was to make the matching activity work with mouse-click events and not only mouse-drags, I have another idea : Show a "selected" state on any element clicked, and have it automatically matched to the next element clicked (if from the adjacent column).