I agree it doesn't replace professional calibration. R.A.B.O.S. is just a single band parametric equalization system, so it won't fix everything, but it can fix the common room-induced bass humps. Maybe Audessey does this now, I don't know.
Isn't this an overgeneralization? There's a wide range of capabilities in Infinity's recent and current models. Here's a lab report on the SW-12 and some competitors' models: http://www.soundandvisionmag.com/ass...micsubslab.pdf. Definitely not top of the heap, but respectable.