And my main point was that might only be due to unnecessary obstacles that made it so hard that the end user loses interest.
We might be into a race of superlatives there - like brands of washing powder a few decades ago. 
emonLib, emonLibCM, emonLibTCM… 
The CM library does get close (the closest yet?) - the voltage and current channel readings are interleaved, but there are still only 4 currents and a single voltage.