I think there can be multiple paths to success; I would tend to think it's impractical for lots of people to try the Equi=Tech at home. Both companies have built quite a reputation, so consumers pick one or the other based on what's accessible to them, or what fits their budget, etc. Somewhat related multiple paths and how we pick solutions, what I find really interesting, though, is how unscientifically we consumers tend to approach a solution to a problem. Two examples come to mind:
1) You plug in a new cable, and OMG what a great improvement it made over the existing one - fine, but did you actually first clean the contacts of the old cable??? This is what I did, for example, before asserting the new MIT 50ic is better on my DAC than the previous one (and yes, the old cable did sound much better after the gunk I removed).
2) Recently, some folks have discovered ultra expensive grounding devices, with various schemes that star-ground at the power supply level or the "signal" level (the negative of an RCA plug) - well, yes, but did you actually also try a simple, inexpensive star-grounding technique as well? Did you measure for continuity between the negative of RCAs and a component's ground prong, before claiming that grounding at the "signal" level is better? You will be surprised to find out that in lots of pieces of equipment the two are actually connected. Or did you make sure that all power cords in a star-ground configuration are exactly the same (make, model and length) to avoid even the slightest ground potential? There were claims that you'd have to buy the exact same separate ground wires for those devices to be their best - well, yes, and if you were to use the exact same power cords attached to a true star-ground pole that would do the same; there were claims that the more expensive silver ground wires were even better because of lower resistance - fine, but again, a better set of power cords would have achieved the same thing.
The point is that, yes, there can be multiple paths, it's just that one has to take claims with a grain of salt and investigate.