> But I wish companies would go deeper than "DevOps" when putting up job posting requirements.

I am not sure this problem is limited to DevOps. Once I applied for a job thinking I understood the job description. During the interview, I had to find out that they put only half the job in the description (the good parts).

Afterward, I took a look on the job description again asking myself if I misinterpreted the description but came to the conclusion that they just didn't want to write about the downsides of the job (not even in management speak like 'You love a challenge?').