My #1 task as a user for MFP is to log and track my food in my diary. It should be the first screen to display for me every time I open the app.
If I open the app 5 times a day, then that's 5 extras taps I have to perform to reach my diary. Multiply that by the days of the week and that's 35 extra taps a week.
It's a minor inconvenience but one I have to constantly deal with every day.