A bad splice could do te same...
Write a code... Submit it. Wait - follow up with substantiation - wait. Get the exothermic welding or wire nut manufactures to help you out - they have more clout and resources than you - re-submit next cycle - wait - you get the idea....
Maybe I will do that for operating rooms. In hospitals operating rooms are about reducing risk. And Yes a bad splice can cause a problem too, however it seems that the 'daisy' chained receptacles I've run into tend to be more problems than those that are parralled.
Not to mention from NEC 2008 210.21(B)(2) says where two or more receptacles or outlets, a receptacle shall
not supply a total cord and plug connected load in excess of the maximum specified in table 210.21(B)(2). A 20 amp receptacle has a maxium load of 16 amps even under 3 hrs (continuous load) compared to the branch circuit rating (20 amp breaker) that can tolerate it for up to 2hrs 59minutes for anything over 16 amps
. It's not just talking about something 'directly' plug into it, but the 'tabs' (screw terminals) as well.
When you daisy chain, you increase the chance/risk of violation. If you had 8 duplex receptacles daisy chained and each one had just over 2 amps of a load (say total of 17 amps), the first receptacle in the chain that feeds everything else would see more than 16 amps compared to the rest of the others down stream, creating the violation.
Not to mention more use/abuse from the current on the first receptacle compared to the others down stream, you want to help even out the loads on that circuit
and devices especially in hospitals.
If you really understood the requirements and restriction and annual testing of receptacles as per NFPA 99 I believe you would see this differently.