This topic comes up every few months. Who cares if something gets logged p1s when it should have been something else? I recently had my BAFR, the instructor filled in my log P1S, I know this was wrong, but why bother making a fuss. I got the forms signed and sent off, it did not cost me any money and one hour makes no difference to most of us.
Interesting that this topic assumes the instructor will take over in an emergency. In the case of say a PFA two seater the owner may have 100’s of hours on type and the instructor may have never flown anything similar. My friend thoroughly enjoyed this ride with me but had never flown in a Rotax powered aircraft, had no experience with a computer controlled electric c/s prop and was very interested in all the no certified glass. He was very impressed, and wants another go, but it would take a few trips to get him up to speed with the differences.
Rod1