G'day DW,
I can't see any reason why Bloggs in his Aztruck can't utilise such procedures.......It is after all up to the PIC to ensure terrain clearance!
Anyhow, I believe it's required for RPT ops, as an operator I flew for used "escape procedures" in PA31 RPT ops.
Having said this though......one couldn't expect to use procedures designed for say a Metro in a type with significantly different one-inop performance. It wouldn't be highly unreasonable though to have a "one size fits all" procedure designed for the majority of piston twins though.
I'm not exactly sure of the context in which the question was asked but I hope I've managed to shed some light???
RFKB