It can be a good thing, tho.It doesn't surprise me - there's swathes of people whose first instinct when they see something horrible unfolding is to whip out their phone and upload it to social media - that it could extend to a director's decisions for live TV coverage isn't much of a reach.
E.g. for evidence in a legal case, performance analysis and review, etc.
Let's not forget that we often record footage of wars, from the WWI and onwards.
Although some might find it distasteful, the filming of horrific events is not without merit.
That is not to say that the broadcasters shouldn't have cut away (they probably should), but there are some hysterical people on Twitter saying all the cameramen should be fired. Which is obviously daft.