Yeah, well the horse manure removal industry took a major hit when cars took over, then cabs took a major hit when Uber moved in. Markets change, entire professions go in and out of existence, and for people that REALLY want to do something where tech has built a better mousetrap, they can do that too, their customer base just shifts from necessity buyers to buyers who purchase hand made things because it's important to them.

Commercial illustration has had the corners nibbled away from it for over a century and never been eliminated. Standardized fonts, Commercial typesetting, lots of things have morphed, reduced and reinvented the creative fields in Commercial, but it's never been eliminated.