Well, I'll step in & offer a bit of things to consider.
First off, any instructor who fails to offer a CHOICE,, and tries to force his/her opinion as the ONLY opinion is not much of an instructor.
Not everybody is the same in size, ability, thoughts, hand size, abilities, desires etc.
Your CCW instructor failed you as an instructor.
Next,, the majority of serious handgun hunting is done with a revolver, followed by single-shot's & then semi-autos. But when it comes to dangerous game animals,, almost ALWAYS a revolver is used.
Self defense. A DA revolver is the KISS method of handgunning. No magazine to drop, lose, or malfunction. No safety button or lever to worry about or accidentally re-engage. Weak hands can have a hard time racking the slide. A revolver can be fired from inside a pocket or purse more than once. A semi-auto will most likely jam while trying to cycle. And a DA revolver can be operated with one hand.
Having taught hundreds of ladies how to shoot over a few decades,, I can attest to the fact that many older ladies can not operate a semi-auto easily.
A semi auto can jam, and it takes (2) hands to clear it. Or to rack the slide. (Side note; My mother was attacked & robbed in her store many years ago. She had a pocket sized semi-auto. She was sprayed with pepper spray (3) times, and was TRYING to get her gun into use.) Try fending off an attacker who is physically assaulting you, and a one handed operating handgun is a better choice. A DA revolver can be operated one handed, with EITHER hand, and will be more reliable due to the fewer controls necessary to make it operate.
That said, ALL types of firearms require PRACTICE. And I do not mean standing on a firing line, holding the gun with both hands, relaxed shooting. Practice is necessary for all functions necessary to making sure the gun will do as you desire.
Shooting with both hands, one handed, using each hand only, reloading, shooting while seated, laying down, or other positions that put you in a "less than optimal" body position. With a semi-auto, you also have to practice the potential jamming issues, dropped mags, the accidental re-engaging of the safety, racking the slide with only the use of one hand, etc.
In short,, to be proficient, you have to really practice all sorts of things,, no matter if the gun is a Single-Action, A Double action, or a semi-auto.
I fully agree that most of the quality modern made semi-autos are very durable, and reliable.
And they can be mastered by those willing to practice, practice practice. I always teach that if you want to really learn to operate a semi-auto, become very involved in a type of competition where time is part of your scoring. USPSA or IDPA both offer such stresses to where you really learn to operate a semi-auto w/o thinking. But as a Range Safety officer,, I have seen all kinds of malfunctions during matches. Jams, dropped mags, re-engaged safeties, rounds of ammo flipped backwards & jammed into the chamber, are among the first things that come to mind.
So, while semi-autos are very good they are NOT the only option.
And to the poster who said; "Donāt listen to the dinosaurs. Revolvers are exponentially harder to master than a semiautomatic plain and simple. Once you master them they give ZERO advantages in a self defense situation so all that hard work is for a lower return." I respectfully disagree. Once you master a revolver,, others are a bit easier to master. But read my thoughts on why a revolver can have advantages over a semi-auto. One handed, easy to operate. Grab, point, and pull the trigger if necessary for self defense.
Now, to the OP, you said; "I wish there was a course offered that was just range time with a whole lot of different pistols & putting lots of rounds through them. I guess that would be a costly course to offer given the prices of some ammo"
I don't know where you are in NC, but if you are near WNC,, I can assist you in that type of training.