Sure you could say it about “any language,” but I think you’re skipping a lot of nuance with your examples: python has notoriously had a long transition from 2 -> 3. C is 40+ years old, and the semantics and idioms of the language aren’t changing from month to month.
I think the parent comment is making the point that the pace of change and evolving idioms/features of Rust means that code you write today may need to be updated in a far shorter timespan than the typical timeline for working code (a few months, rather than several years). The bitrot is just a lot faster right now than other languages.