I think the relative importance of syntax compared to actual semantics when it comes to ease of understanding is probably rather low.
Either way Haskell is also probably the language that lets you produce the most succinct code of anything that could be reasonably be used in production.
> Haskell is also probably the language that lets you produce the most succinct code
It is. Haskell has the low verbosity of scripting languages like Ruby and Python while letting you manage applications that would otherwise be written in high verbosity languages like C++, Java, and Rust.
Either way Haskell is also probably the language that lets you produce the most succinct code of anything that could be reasonably be used in production.