As it was/is a design decision on the part of NVidia, I am pretty sure they know about it. Seems SLI was designed for use with first person shooters in mind and not much anything else.
Of course, if the frame rate is low enough, the graphics tearing would not be an issue. It only happens when the frame rate exceeds the monitor vertical sync rate by a good margin.
It is ironic. A badly coded game, which runs poorly on a PC, is really what SLI works best with.