I actually do agree with the idea by the OP, despite the shaky somewhat hard to understand grammar (that is, assuming such an option wouldn't be exceedingly difficult to provide). xD
The beamdog entry is seen by many as not being up-to-par to Black Isle quality, and by others as not even a true "canon" game to the franchise so to speak given the nature of it's release by a completely different studio. To me, the option for removing SoD seems justified, and would probably save some people money who only want to play 1 + SoA + ToB (the "canon" series so to speak) in a merged journey.
EDIT: To be honest, when I saw this mod I thought "ahhh, do I have to get SoD to play this?"