At a recent weekly .22 rifle match here we had two stages with winning hit factor 17 and 20. That's pretty extreme as well, but a buddy of mine built them because he thought he could beat me on close range stand and shoot, which he didn't btw, the 17 and 20 HF's were mine
On a big IPSC match you wouldn't win a short course stage like the last one you posted by taking a penalty though. On stages like that pretty much all of the top shooters will shoot about the same times, differing 2 or 3 tenths of a second, and the stage will be decided on who manages to keep their shots in the A zone. One small mistake....like a miss or penalty and you will be 40 places down on the stage result.
I think a good rifle match should have maybe an average HF of about 5-6 with maybe 10-15% og stages below 3, and maybe 30% in the 7ish and above range.