Never mind. I went directly to Roger West and this is his reply:
Hello Eric,
Connie gave me your question to answer since I am the designer. Concerning isolation feet, they are used for two purposes, first they look high tech and secondly, they help to reduce vibrations from a speaker cabinet, especially if a powerful woofer is involved. When high vibration waves are occurring in an enclosure the proper feet can reduce audible vibrational energy that is coupled to the floor. I am certainly not against using them for this reason. Usually,box designers attempt to make the box no larger than necessary, which concentrates
a lot of energy into a small volume. However, in contrast our speakers, as you know, do not use the woofer in a box approach. The energy in our panels is spread out over a large area which eliminates energy concentrations that can cause vibrational
noise. Thus, I do not recommend isolation feet be used since any vibrations are extremely small. However, if a person wishes to have the high tech appearance then they could
be used. Hope this helps.
Best regards, Roger West