It seems normal and appropriate that all pilots should be taught some basic instrument flying skills, so they have a chance of extracting themselves upright from careless entry into IMC.
I get the impression though that a lot of scary IMC moments for non IMC pilots are not of the 'Crikey I was just swanning along in the blue, looked at the map for a couple of seconds and now I'm in a cloud, better do my 180' but more of the 'I reckon I can just about squeeze between that high ground and that lowering cloudbase'.
In other words I think a lot of 'inadvertent' IMC excursions aren't inadvertent at all. I think it's poor judgement that leads a lot of pilot's into IMC misery and perhaps that's what FTO's should be working on.