I don't want to open dolphin, I want to mount the device and then go into my terminal and do whatever I want. Please resume this.
If you want to do stuff in a terminal, you'd use a terminal. If you want to use a GUI, you'd use dolphin. I see no reason to implement some half solution in the UI. (FYI, krunner will mount)
Clicking the "Mount" icon in the device notifier still mounts without opening dolphin.