Yeah; I'd rather have proper multiline strings in Java and a regex documented with the COMMENTS flag set. What I don't need is a regex builder. Or SQL builder, for that matter.
This took them way too long for how easy it is to add and how many headaches it would prevent.
They don't want to bloat language with million of rarely used syntax and hard to read features, just as Go devs do. Not to repeat the failure of Scala (and I'm afraid Rust goes the same way).