Ghost-rider,
You asked:
Whilst the airspace is obviously in no way comparable to UK, what's the legality of that now bearing in mind TG12 ( ASOp ) have no ticket for 'controlling' ?
Was the procedure officially endorsed in local docs and its conditions clearly explained?
If not, ask yourself this: if a helo were unfortunate enough to hit the mountainside, how much support would your TG12 get if it was announced that s/he had no licence to 'control' the aircraft?