Let's be real in most situations it doesn't matter. One "statement" per line is bog standard. Whether that statement is surrounded by parens or ended in a semicolon isn't impactful for reading.
LISP is only better when you add source code transformation (which is way easier with its source code looking like the transformed code). But then you introduce "everyone can write their own syntax" which is good and bad given the history of DSLs...
> One "statement" per line is bog standard
This isn't really true. Most non-Lisp languages I work in, like JS or Ruby or Python, have things like long_expression =\n long_other_expression, or long_expression\n.another_long_expression\n.another_long_expression.
And if most of your code looks like that you are making a mistake.
"Sometimes I need multiple lines" is fine, exceptions happen.
But again I ask, visually are those lines super different?
Ditto for things like for loops which have multiple statements in a line.
When writing code you are transforming it all the time. Having only expressions (mostly) comes in very handily. It is called structured editing of code.