Maya shouldn't pull window focus while loading
Loading Maya it will repeatedly pull window focus and interrupts you. This is even worse if you are loading a heavy scene or directly opening a file.
Maya will force focus away from whatever else you are doing. Blinking on the taskbar when ready would be much more reasonable.
This is also an issue when starting a render and then going on to do another task. When the render finishes translating Maya will pop to the front, interrupting you. Or, just as you are hitting escape and you accidentally cancel your render.
The user should be choosing what window they are looking at, not Maya.