Tom:
No, I think you are dead serious. However, I do not live in a perfect world (one in which one mechanical system is always the end all).
There have been numerous threads (another one recently over @ AA) in which for some reason spiking to a solid slab cement floor does not offer decent results with the particular systems. Perhaps something to do with the gear/room as such a vibration drainage system generally works well in these types of configurations. Again, it's not a perfect world.
To think that cryoing the spikes (in these setups) would solve the problem is unsound thinking, IMO.
Think the recent AA tread is about heavy speakers (not a rack), but with that system, as well, soft footers pretty much solved the problems.
Soft footers don't work with any of my current gear, but if they sound better in a another system then that is what it is all about.