You may quote from as many sources as you like; as many newspapers or other media as you wish. 
But the important thing (the skill), is to be able to separate reliable sources from unreliable sources.
Any subsequent analysis (based on source reports, of course) has to start from an open-minded approach to the reality of things, rather than from a pre-set agenda.
For people with pre-set agendas will always find what they are looking to find.
Turning to the three sources that you have now quoted to me:-
Well, we've all recently seen just how "ceremonial" the position of Cardinal Patron of the KofM is! That is, not very. For Burke found a way of using it for his continued attack on the Pope. It may be of no interest to you, I do not know - but, in case you've not spotted it, the Catholic hierarchy (and some laity) are currently fighting a real battle, with real consequences (such as whether condoms may ever be used by a major charity which has important and real work to do, worldwide).