I think you're giving them just a little too much credit for implementing, essentially, a product that works as expected.
And the reason for that is partly because so many companies make products that don't work as expected. Or worse they make products intentionally designed to mislead users, most of whom have very little understanding of what their device is actually telling them.
More importantly, the super-users like yourself who know when they're being deceived by symbology in UI design don't get up in the companies face when you DO discover "hey, this symbology is misleading!" Granted, companies are intentionally vague when documenting such features so that you'll essentially shame yourself into not asking "what does this little symbol actually mean?"