I don't think any of these are unobtainable, and I would consider myself able to consistently do each one on demand most of the time. We are all subject to making mistakes from time to time though, that is just the nature of shooting at a high level. I would say if you can hit those things 80-90% of the time or more cold then I would consider that the ability to do it "on demand."
My first USPSA match in 2013, I already considered myself a pretty decent shooter by my agency and IDPA standards. I was already an IDPA master at the time and had shot a sub 90 second time on the original IDPA classifier to earn that. I squadded in that match with Matt Mink, who shared the same range/club I went to. Matt was coming off a 3rd place finish at USPSA production nationals that year a month or so before that club match. I remember watching Matt and thinking it made me look like i picked up a pistol for the first time yesterday. He was 10+ seconds faster than me on a 20-25 second stage and only dropping a couple C's per stage. It was eye opening to realize there was a whole different level of performance out there and was the motivating factor for me to really start training.
I think practicing static drills like the ones listed above over and over is not going to net you much improvement. When I started focusing on the skills I needed to excel at USPSA, my ability to shoot static drills like this went exponentially higher. USPSA is where the best pistol shooters in the world are. If you aren't trying to improve and be competitive there, then you are just not going to be able to touch the level of performance even an average M or GM shooter can lay down.