What you say are reasonable points.
However, that market is essentially very busy businessmen who have hectic schedules. Most people simply don't need to micromanage their day to such an extent, so the Apple Watch is redundant to their needs.
I think that you have the same mindset as Tim Cook and others at Apple when they were dreaming up the use case for the watch. They, too, have extremely busy schedules and clearly derive benefit from the utility of the watch. As we are seeing, though, it appears to be a very niche market, and begs the question: was it really worth expending so much time and effort on such a small market, in view of the fact that Apple still tries to work like a start-up with relatively few resources and staff in order to concentrate on a few things?
My feeling is that the Apple Watch has cost Apple a great deal of focus on their other areas, which has been to the detriment of Apple's overall reputation. This is why I think it would be prudent of them to wind down the Apple Watch and concentrate their attention on Macs, iPhones, iPads, software and services.