“Marketing” is just the publically exposed arm of a go to market strategy. It will never die as long as money exchanges hands for goods and services.
The methods and language change, and sometimes some of the methods of delivery, but regardless of how a market operates - it will always have a function that bridges the product and consumer, provided there’s a plurality of both.
A W-shaped, multi touch funnel to nuture MQLs into a RFQ is just more sophisticated version of yelling “Fresshhhh Fishhhh” really loud as the boat comes in.