What about programming the Mageia installer to sense graphic card capability then notifying the user of being able to select advanced options during the installation process that would allow them to choose whether to use non free video card drivers or FOSS drivers, then afterwards select which window manager options are then available so that on first reboot the graphics and desktop are all set up and running.
I have found lots of new comers to linux don't often learn how to do those installs or know of their capability until later on which creates quite a bit of frustration when first learning to set them up correctly. I have seen people get frustrated/lost/stumped with the CLI method or aggravated at gui's which don't work and lead them around in circles as they try to "just make it work". Often newcomers then go to forums seeking help only to get a go RTFM response or told to go google the hell out of it, but does this really help people be happy with linux right away or keeps giving linux that "hard to use" black eye.
Too often when newcomers play with the computers of more experienced users that have already been set up with the cool effects they cant believe how nice it can be then want their computers running similarly.
its been my personal experience to note that friends/coworkers who have given me their old computers or laptops before they toss them out ask me to set them up on linux as an experiment usually end up liking the machine so much when they get it back they quickly switch from the other commercial offerings and take up linux.
Just my 2 cents on what might help Mageia, take it for what its worth.