The Raptor could have been one of the greatest FTA boxes of all time, but the Closed Source support was not there. The Raptor was lacking in enigma2 because of the processor speed and the SH4 architecture. External usb tuners are not supported in SH4, although Sundtek did manage to make a test custom SH4 image that supported it.

IMO, the Linux Kernel build is very important, and will dictate to a degree what support will be available and for how long. Edision likes to use recent kernel builds which helps extend support. Edision was also the first enigma2 receiver (that I know of) to have an internal 16APSK tuner available.