The pedal industry as a whole revolves around several different circuits and their variations, some companies work hard to break the boundaries such as the likes of TC Electronic but most companies look at what sells and add their own spin/USP to the products.
With Behringer that USP is often price which means that players just starting out have the opportunity to try more gear and find their own "flavour" without investing thousands into what may be wrong for them.
One such pedal is the UC200 based on the Boss CH-5, both of which benefit greatly from volume and tone controls. These are not often found on choruses which helps this stand out from the crowd!