Are they? Examples (this (red/rebol) are OLD)? I see more crap. We already have ways to manage complexity; we have VERY advanced type systems that are finally feasible (my joy) but no one can work with them, and llms not yet. You can manage resources, logic, proofs etc all with typesystems. Rust is a step (people like it as they can make changes to large codebases without leakage somewhere you 'forgot' is there and others like it because there are less footguns), but we have the future already in a bunch of other languages it's just not used. So what do you mean with " I feel new languages try to strategize in the domain of complexity management."?
(Disclaimer: I think the GP comment is of a level that I don't think should even be considered replying to, so I didn't)