and thanks for your very carefully worded post and contribution.
And although I won't argue with your para "Especially the Extreme chronograph makes it difficult to read the elapsed time at a single glance, since it is very likely that one will not find the stop second hand, among the confusing array of 24 hours hands (however, I admit, this problem seems to be much more present on the platinum version, while the steel version seems a bit better to my eyes). The minute counter's increments of two minutes is another problem. I think that many, if not most owners of watches with pointer calendars on a subdial will agree that it is very difficult to read the calendar at a quick glance. The numerical values all look the same, and it is not easy to quickly determine whether the hand is directly on a figure or between two figures. In the experience, chronograph minute counters with ten or fifteen minute increments (with small markers between) have proved reasonable, while still inferior to the rare system with a central 60 minutes counter hand. Why JLC now adopted the worst increment system, is beyond my understanding." since they are logical, but unfortunately, the eyes are smarter than your logic of arument.
Trust me, even a nearly blind man (like a presbiopic me) can tell the chronograph time immediately, the chrono HOUR, the MINUTE and the SECONDS were all screaming to be read, and yes, it will be hard to find someone who can't read the chronograph time.
Trust me, if I show you this watch, you can read the chrono time IMMEDIATELY during the running of the chrono or after the stop button is pushed. If there is any problem with this watch, legibility is NOT one of them. Perhaps due to my presbiopic and also could be because of my non-observant nature, I for example need a second and a third look and another rethinking before I know the Hour and the Minute hand from a Ulysse Nardin Freak (while a younger Bernard seems to have absolutely no problem), but to me, World chrono time is JUST there, right in front of you.
Also the Minute counter is a (semi-instantaneous) jumping minute.