The problem with light twins is that, just the same as heavies, you can't wing it with qualitative waffle.
Either you do quantitative sums based on quantitative terrain and cultural data/flight test validated performance data .. or you're having yourself on.
I've spent a significant part of my engineering working life doing just that for heavies. When I fly lighties, I know I don't have the data available to do the same sort of thing .. so I go conservatively so that I know I have an out.
When the nonsense arrived in the AIP about light twin drivers making sure that they can get out after a failure, I argued until I was black and blue in the face with the examiner who sponsored the amendment. No joy .. like talking to a brick wall. Nice guy, though.
Guess the fun will start when the toss is argued at a coronial and then in the higher courts for damages.