No, FairVote is not a reliable source. They knowingly use falsehoods to push Hare's method under the name "RCV", and to attack every other voting method and reform organization. Compare with other points of view:
Unlike Hare RCV, Condorcet variants of RCV are good, but no organization is advocating them in the US, and FairVote actively works against them.
My suggestion here is counting all rankings, not having a winner determined by the sums of first choices, which would introduce some complexity and possible elimination of ballots
Some ranked ballot systems that count all rankings:
You probably mean https://www.rcv123.org/? But that uses Hare's method, which is pretty flawed and won't always pick the candidate preferred by the voters.
Better to use https://star.vote/ (score ballots) or https://civs1.civs.us/civs_create.html (ranked ballots).
Unfortunately the form of RCV used everywhere in the US is Hare's method, which eliminates candidates based only on voters' first-choice rankings, which largely just perpetuates all the same problems as FPTP. There are many other better reforms. One of those should become the norm instead.
haha that might be the dumbest rebrand I've ever heard. Hope it succeeds, though!