Sure, you can call not supporting one of the most basic UI features a "design decision", but it's a terrible decision and it won't protect you against valid com

Sure, you can call not supporting one of the most basic UI features a "design decision", but it's a terrible decision and it won't protect you against valid complaints from users, just like apps like Skype got complaints for mishandling the window's close button. Intentionally broken is still broken.