This may be a poor analogy, but think of it this way... other genealogical software are like an automatic transmission, whereas WikiTree is like a manual transmission.
There are pros and cons to each. The power and flexibility of a manual transmission can cause all sorts of problems to those who don't know how to properly use it.
WikiTree is a wiki. Wiki's can be openly edited, but require some limited, but specific syntax knowledge. Wiki's are less complicated than straight HTML sites, but are more complicated than other standalone software applications.