scart is well recognised as being crap in a number of respects, both mechanically, and from a signal integrity point of view. The mechanical issues are one of the reasons there is a move to using locking version of the plugs etc.
It is also recognised that for the highest quality displays, especially with progressive scan sources, that component video is the way to go. Most equipment that can output progressive scan signals will not do so over their scart connectors anyway.