I had a (now defunct) startup in this space some years ago. Maybe I can help shed some light on why things are the way they are. 1. Money. Most museums have no money. They either run on donations, on subsidies, or at the whim of wealthy patrons. They are very costly to run, especially the big ones. They are often in prime real estate areas, many require tight climate control, many also require specialised lighting to…
Museum curators used to be called keepers and this only changed in the mid-late twentieth century. The philosophy of preservation runs deep and you won't struggle to find curators whose favourite day of the week is when the museum is closed to the public.
Curators tend to make exhibits and displays that appeal to their own scholarly reference points. You need a different role - interpretation - to literally interpret this scholarship into what the public might be interested in. Few museums can afford to apply the lens of interpretation, so for the most part we are stuck with what curators think and its limited crossover with what the public want.