amberleaf et al, yours is the last post to make it clear you are angry and resentful about this event as are many others. I would point out that lashing out in anger now will see the project finished and then your donations will really be down the drain.
I very much doubt that any member of that team went in that morning thinking 'I know how to screw the project, I'll omit to do ...'
If an error was made, then we should be looking at why it was made; that will then lead to measures to reduce the likelihood of recurrence, eg follow the suggestion by EGCA.
If any member on this forum can honestly deny that they have an 'I learnt about flying/engineering from that' story then they very probably don't fly or maintain aircraft.