Original sentence: Given less constraints by studios, a lot more flexibility is offered in their DRM - allowing users more "Fair-use", and to watch films on their Laptop, round a friend's house, as well as their original desktop PC
Edited sentence: Since they are not subject to over-cautious restrictions imposed by the major studios, a lot more flexibility is offered in their DRM - instilling more of a "Fair-use" approach, and allowing customers to watch films on their Laptop, round a friend's house, as well as their original desktop PC