Don't know if ccc will come back to answer ST's question of not, but it's interesting to note that ccc and Moon Dog have opposite views of Bose systems outdoors.
I think we all know by now that the array design is intended to create a wide, even dispersion so that all the audience is bathed in the same sound. The longer the array the wider the dispersion.
Some Bose Home Stereo speakers have been designed with reflective properties in mind. With suggested placement to produce a natural sound throughout a confined space.
Bose live sound speakers are different from home stereo. I doubt that any speaker is designed without some consideration of reflected sound. The L1 series, in particular, was designed in such a way as to reduce unwanted reflections from the ceiling, providing a narrow vertical and wide horizontal pattern projecting a clear sound deeper into the audience. If I understand correctly, the articulation of the array was a means of providing a more even horizontal dispersion of the directional higher frequencies. I think that articulated design was first done by Chris @Bose in the 502A. That the array design reduces reflected sound from reentering the main dispersion pattern makes it more predictable in free field or open space, outdoor settings. I think that quality is recognized by Moon Dog.