FB - yes, but i know some very well meaning people who referred to the Gnat crash in a similar context, and were not meaning to be disrespectful. The difference between an aerial display or aeros and a "stunt" is not widely understood by joe public (never mind the news media).
SD - explicitly I'm saying that many people on here can probably make a relatively informed judgement call as to the primary cause of incidents such as this one based on evidence presented and background knowledge and often this indicates "pilot error". In this particular case i am thinking it may not be as straightforward. In due course we will hopefully find out.