It seems to me that by "everyone" you mean Android, Apple and Microsoft. And those "everyone" doing/not doing something is not an argument that it is the right thing to do/not do: those companies most likely do stuff to gain or keep control over the devices, which usually is not in the interest of the user. Why do you think I didn't buy any of their devices, but a Jolla instead?

So, that leaves the "it's hard to do" as argument. It can't be harder than unmounting the sd card when the user removes it (I sure hope you don't need to turn off the devices to do so?!).