I think it simply boils down to the requirements of interactive editors vs. batch tools.
I have no doubt that interactive editors like Atom/Zed can really make use of incremental parsing, and also lenient parsing.
Syntax highlighting and parsing isn't the only thing they do -- they still need the CPU for other things.
But yeah the problem is incremental is very different than batch, and lenient is very different than strict, so basically every language needs at least 2 separate parsers. That's kind of an unsolved problem, and I'm not sure it can be solved even in principle ...
I have no doubt that interactive editors like Atom/Zed can really make use of incremental parsing, and also lenient parsing.
Syntax highlighting and parsing isn't the only thing they do -- they still need the CPU for other things.
But yeah the problem is incremental is very different than batch, and lenient is very different than strict, so basically every language needs at least 2 separate parsers. That's kind of an unsolved problem, and I'm not sure it can be solved even in principle ...