Just to add to another aspect of this accident report, the continuing
low approaches when competition officials radioed instructions to fly
above 200 ft. Well, perhaps the pilots did it deliberately, but I'm
not so sure.

The accident report states: "The language used during international
gliding championships is English and so all competitors should be able
to understand such an instruction". I'm afraid that's rubbish. English
is the only official language for rules, communication etc., but
knowledge of English is NOT mandatory for the pilots. Many
international competitors speak very bad English or even no English at
all. I'm not assuming this: I was a ground team member in two world
championships. Non-English-speaking pilots just learn the
indispensable terminology for take-off and landing by heart (The same
trick applies when an English pilot - who doesn't speak the local
language - flies in Spain, France or Germany, for example). Their team
captain translates the most important information from briefings and
other instructions.

The same holds true for the organizers, by the way. In both
championships I was involved with, only some officials were able to
speak English sufficiently fluently. I remember some security
briefings where it was decidedly difficult to understand if some parts
of the airspace, normally restricted, were available to the
competitors or not! And communication between the organizers and the
tug pilots was in local language only. Not exactly a safe situation...

Please don't assume that everybody in the world understands and speaks
English - or even "Globish". It just isn't true!