So when they 'went spastic', were they able to point to any rule of law or common sense reason for prohibiting practising a forced landing on to a perfectly serviceable landing area?
Or did they expect someone to prove the unprovable: Practise a forced landing into somewhere that's suitable, but don't go below 500' 'cause that's naughty, and if you haven't gone below 500' you haven't proved your competence.