I think some salespeople see it as a high touch process and they don't want to wind up like
https://en.wikipedia.org/wiki/John_Henry_(folklore)
Of course them feeling that way doesn't mean that is right for the business.
People have been applying automation of all forms to CRM systems for a long time. I worked years ago for a company that developed solutions for locating stores and designing sales territories and we were so serious about a product for Salesforce users that they sent me to Dreamforce.
We built it out for one customer that is in the motor oil recycling business and had a database of prospects that was basically everybody involved in auto repair in the U.S. I don't know how they populated it, but our geospatial analyst built something that could assign new prospects to sales territories and I wrote the code that hooked this up to the Salesforce API.
I'm not calling this out as anything special, quite the opposite, all kinds of people are doing things like this all the time with traditional CRM systems.