Expert Generalists are a thing: https://martinfowler.com/articles/expert-generalist.html

BUT they're completely wasted if you just use them to turn JIRA tickets into end to end features =)

Haha agreed. Thanks for the link, will give it a read. I feel like expert generalists should be founders or CTOS, and they are probably not applying for the positions that claim to be wanting expert generalists.