Perhaps it depends on location/ type of environment or something. When I see job postings they seem to mention AngularJS 1.x or as 1 specifically. However the ones for Angular2+ don't really mention to mention that clearly.
Perhaps your experience has been different .
[1] https://www.ziprecruiter.com/c/Capgemini/Job/Senior-Software...
[2] https://www.ziprecruiter.com/c/CyberCoders/Job/Lead-Programm...