Ranked choice voting sucks anyway, and that section doesn't seem to prohibit score voting. You're not "voting" for more than one candidate, you're scoring all of them; you're not "ranking" candidates, you're scoring them (and you could e.g. give two candidates the same score); you're not reallocating votes from one candidate to another, you're electing the candidate with the highest score.
It's also not clear that bill is going to pass. It seems full of other things Democrats have a major incentive to filibuster.
It's not even clear that Republicans have any reason to prevent score voting. One of the failure modes of ranked choice is that you can end up with more radical candidates winning where one party already had a majority because it allows the majority party to run a radical candidate next to a moderate one, but then if the radical candidate gets more votes from their own party, the race becomes the radical vs. the minority party after the majority party's moderate candidate got excluded, and then the radical candidate wins. They saw what happened in New York and didn't like it. But Democrats should have exactly the same concern -- what do you think that does if you adopted it in the South -- and in general ranked choice makes polarization worse. Ranked choice actually does suck.
Whereas score voting does something else. If you run a radical, a moderate from the major party and a minority party, the moderate from the majority party wins because there is no run off election, they just got the highest score because they scored better among the minority party than the radical and better among the majority party than the minority party candidate. And when more candidates than that run, the most likely to win is the one that best represents the entire district, which reduces polarization, and that's to the benefit of everybody.