This looks like a professional tool for doing stuff with files. The same way Word is a professional tool for text and documents, and the same way that Photoshop is a professional tool for editing images.
Difference is that doing stuff with files is not a profession.
FWIW, I've had jobs in e-discovery/computer forensics where I was something very close to a "professional file-doing-stuff-with-er". I was a heavy power user of Explorer, along with cmd, powershell, cygwin, in-house tools, third-party tools, third-party Explorer add-ins, etc.
I think if I still had that kind of job now I wouldn't care much about the command/menu bars vs. the ribbon - the former were pretty useless, so at least there's not a lot to lose - but I'd be very happy to see them implementing drag-and-drop from/to the breadcrumb bar.
Difference is that doing stuff with files is not a profession.