But they're not introducing nuance, they're invoking FUD.
Their arguments aren't, "RCV is way better than FPTP, and it's great that communities are adopting it, but I happen to like this similar system even better. Let me tell you about it." I would love to see discussions like that.
Instead, their arguments are "RCV bad. [Other system] good.". Their arguments play right into the hands of those that want to delay/avoid change so that they can continue to manipulate elections.
I've thought about this exactly. Here's my idea.
Crowd source the algorithm every X years. Anybody with basic skills in map making and programming can submit a candidate algorithm. Candidates are scored by...
A) how well they evenly distribute the population across districts (eg +X points for every extra person a district has above a perfectly even distribution), and...
B) how simple the districts are (eg. +Y points for every corner each district boundary has.), which would prevent any kind of gerrymandering.
Lowest score with above example points system wins. Winner gets to have their name on any ballots used while the districts chosen by the algorithm are used. Or something. π€·