Only if you believe that more throws, from a variety of different lies, is bad for your growth as a player. Why would more practice retard your growth? It is completely illogical.
because you will not develop a short game as putting is not as much of a premium on championship courses.
On a par 72 course 1/4 of designed throws are putts......in 3 hrs on a conventional course you can play the course 2x and get 2x as many putts and on a pitch-n-putt you will likely get 3-4x as many putts.
Everything in disc golf is about putting.....if you are a good putter you will have a more forgiving approach area as you don't need to park the approach, you can take a safer approach as you will make the putt from beyond 15-20ft. The game works backwards from there back to the tee.
For years I played a par 67-68 beast and I constantly tried to hit lines that were beyond my ability....it was a gold level course and I was far from gold. I regularly played bogey golf (still do to be honest)....when I went to shorter courses I did even worse as I had zero short game and to this day I am still catching up.
My advice is to play shorter less epic courses if you are serious about improving your game......I did some research and noticed many of the top players started on short easy courses and many still claim short courses as their home courses.
Would you recommend a beginner to start at the penultimate in his sport (go climb Everest before you hit the climbing wall at the gym, play Augusta before you play your municipal course, go drive a 225 mph race car to train for your drivers license test/)
In disc golf, playing a champ course taught me nothing.......I was either attempting to throw a shot beyond my ability and just be losing discs and starting all over again or I would be trying to save discs and keep my score respectable and laying -up....neither did me any good as a player.