In general I'd say that they are disappearing, but not gone. Since it used to be that most places had drafters and that is no longer the case, I'd conclude the same is true of any other intermediate. Same happened to secretaries - no more just asking for a letter to be drawn up "like the one to Smithers." My personal experience is that the time 'saved' by having drafters is often lost by having to check garbage work. Note that I say "often." There have been a few cases where skilled, diligent, careful, and otherwise qualified people were in those positions and they were both amazing time savers, they were an invaluable asset to the development team.
(Anecdote: on one high-paced project there was a drafter who would regularly meet the team's request to make a substantial change with "Like this?" and point out the change already incorporated. It turned out he would stay late and look over the vellums the engineers were working their problems out on and got a firm idea of which engineers were reliable in making changes. By the time the engineers had their ideas worked out, he'd gotten the level 3 documentation to match.)
(Other anecdote, one more typical: in the sustain phase, with small changes to be incorporated and no rush, a different drafter stopped some engineers because the CAD system wasn't working right. So a quick investigation and it turned out that in moving the software from proprietary hardware to a less custom workstation the keyboard layout had changed. So where the asterisk had moved one key over. In. His. Notes. the drafter had indicated the asterisk was shift-7. But when he pressed shift-7 an asterisk did not appear. We pointed out it was now shift-8 and he erased the "7" from his notebook and filled it in with "8" and continued on as if nothing had ever been a problem.)
In any case there are some places that consider the creation of drawings to be so far below ENGINEERING that they will always have intermediate levels and some places paid for CAD so they could get rid of those costs and suppose the engineers will be competent at it because the software does all the work.
I suspect it is more expensive to get good intermediate level workers than it is to get engineers to make passable drawings.
(Last anecdote: in the starting age of word processors there was a secretary that became known for horrible work. A handwritten memo submitted to her would come back with typos. So the printout would get marked up, sent for correction, and a new version would arrive, with different typos. It seems she never saved them; just would do them over from scratch each time. As for the spell checker, she apparently just added any word the software complained about to the dictionary. I didn't realize how bad it was until one day there was a substitute. I dropped off a page with her and headed back to my desk. I hadn't taken more than a few dozen steps when my phone was ringing and I rushed to my cube. It was the secretary. I was at first very concerned, until she asked if she should make and distribute copies, having already typed it up. The regular secretary had a turn time of about 2 hours. Oh, how happy I was to just type my own when the engineers finally got computers, but I did miss the temporary secretary very much until then.
Also a joke. One time a secretary, one of the good ones, was walking past and as she got just by me, I casually mentioned to the person I was talking to that I could type "180 words per minute." I could practically hear the secretary stumble to a stop as if struck. I then turned and said, "As soon as I get used to the 9 key I will be able to type 190 as well." I got "the GLARE" but I think she thought it was funny anyway.)