I am glad I read this article. I would have missed the probes position. Of course I have never used the probe height only the probe corner. I don’t think I will ever use the probe height setting now as I like to double side tape my probe in place during the probe and putting it on the surface rather than the corner for me would suck. I will stick probing the corner always.
Although, I do realize why they do that. If your start point is in the middle of the job you don’t want to go to the corner to probe so it would be natural to have the probe sitting on top of your job, hence the needed offset.