Absolutely.
Well, the question is whether the “-” sign in front of “b - c” negates just the “b” or negates the entire “b - c”. And this is what “left to right” is meant to settle: it means to read this notation in the former way rather than the latter way.
But it is true that people, for whatever reason, very frequently write chained subtractions in this way, and very rarely write chained divisions in this way. If you see “a - b - c - d…”, you can be quite sure what is meant. If you see “a / b / c / d…” or “a ÷ b ÷ c ÷ d…”, you are dealing with a weirdo.