Nope, Audyssey focuses on the entire frequency range from 10 Hz to 24 kHz and "knows" what to do in each segment. Oh, but wait a moment, Audyssey does not only work in the frequency domain, but also in the time domain where it tames early reflections that arrive a few milliseconds after the direct sound is emitted from each speaker letting us hear a more precise placement of sound sources in our rooms.
@Q&A - XT32 focuses more of its processing power on correction to the lower (below Schroeder) frequencies. This represented a change from previous versions of MultEQ (eg XT) where the processing was applied equally across the spectrum. This led some people to believe that Audyssey could do more harm than good in the upper frequency range (and may be germane to your original question here). However, XT32 applies a 'lighter touch' to the upper frequencies and concentrates on the lower frequencies where correction is far more necessary and important.
Don't be persuaded by Feri's 'entire frequency range' position as this is not correct when discussing XT32.