Earlier quoted context omitted.
SME and IC are functionally different. SME informs, IC creates. Often, IC aren't SME in the space they're developing in, because they're SME of the technology instead of the business.
I agree that technologists are SME of their field (so we still call them SME in my Corp)
Or, if you truly do not need anyone but a "technologist" to deliver product, you must work in a pretty simple business space! I work in healthcare and our PhD's and MD's have a very, very different knowledge space than I do, I and I deeply respect their contributions.