[jonathan lall]

They clearly mean the Anderson connectors provided are preferable at the very least (surely a good safety precaution to standardize to help the inspectors out), but your interpretation of it being electrical and not an electronic component (which of course have rules tacked on) is reasonable. I'd stay on the safe side and not try to interpret the rules here; this is probably a question for the Question/Answer System since the change in wording from last year means different semantics are intended, although the main clause of <R20> is clearly in turn feeds power to the Main Power Disconnect Switch and Circuit Breaker Assembly. If you mentioned what was acceptable last year in a QA post, and state your general intentions, FIRST would probably welcome it.