- it would
• be more consistent to use the same type of input and
• sometimes save a little work for those who contribute to the film database
Admittedly, the case of assigning 8 oscar categories to a movie is an extreme one. But sometimes there are indeed cases, where the user could assign 3 categories in 1 step, and seeing that their work is voluntary, I think there is no reason to make it harder than it would need to be.
(I hope that doesn't sound like a reproach, because it's not meant to be one. Just a well-meant suggestion.)