This law applies to anyone in New York with no stated exceptions for outliers. If he ever works for a company/satellite office there, whether remote or on-site, he's as much a member of the job market as anyone else. Any company interested in hiring him would obviously provide a massive number at the higher range.

But they would never make a job listing for the job. They would just reach out to him and ask for an interview. Actually they would reach out and ask to have a discussion about what he wants to do next, and it would be a multi-month effort of convincing him to even apply, including informal meet and greets with the team. There would never be an open req.

And when hired he would be hire into the role that has the salary range he requires and possibly some larger than average performance based compensation scheme, which is totally legal, but also possibly not because at the point that you're hired as a principal or distinguished eng the default compensation is still really high.