I know what you mean. The basis of the UI is quite good in my opinion but things like mode order seem to vary.
One my old CA-901, which was the first Casio watch I owned, the mode select order made sense: Main time -> stopwatch -> alarm -> dual time -> game. In some more modern cases, Casio have kept this order and in others that have altered it. I don't know why.
On my G-9000 it goes: Main time -> stopwatch 1 -> stopwatch 2 -> countdown timer -> alarm -> world time. So it's effectively the same as my old CA-901. Why two stopwatches on this model? I don't know. It all seems strangely random.
Of course, the growth of smartwatches might perhaps encourage Casio to allow the user to define their own mode select order!
I prefer that one Casio's way. It avoids any possible error and I like that. :-)
Oh yes, I agree. This is a truly bizarre design decision. The light should stay on no matter what else is being done and should be configurable to stay on for longer, too.
Yup, this is an odd thing too. Like the two stopwatches on my G-9000. I've no idea why this model needed two concurrent, independent stopwatches and others do not.