I'm not sure I'd go the direction of labeling poly+RA as "true poly" . . . that seems a little heavy-handed to me, a little too much about ideological purity for my taste.
"True poly" hahahah
Polyamory is about having, desiring, or being allowed to have multiple romantic associations. Distinctions about rules, boundaries, longevity, sex, courtesy, kink, religion, ethnicity, sexual orientation, etc are personal preference and in no way impact the definition of the word. Instead of trying to redefine polyamory, I suggest people just add a prefix to it if they feel it presents assumptions which they don't agree with... or just use a different word.