As Jim indicated, the bales-on-end between-studs approach is new and still developing. In a recent Arkin /Tit job, David let me try out a new approach to holding the bales against the stud and plywood wall: we nailed wire staples to the interior face of the studs, then looped 1/2" cargo strapping through the staples and cinched off the loops with those metal clamps. When the bales were installed the free ends of opposing straps were overlapped, pulled tight across the face of the bale with a strapping tensioner and cinched off with a clamp.
This worked really well, and is probably cheaper than using lots of those looong timber screws, but the driving reason I wanted to try it is that I'm bothered by the interior plaster having to cover alternating plywood and bale surface. Yes, the plywood washers get lathed, but it just doesn't feel right. Too close to boxing in the bales.
Final note: to make as many as possible of the spaces between studs bale width ( and avoid that bale ripping Jim mentioned ) have the carpenters NOT install Jack, Queen and cripple studs. Instead, use single trimmer studs around doors and windows and fasten sills and headers to them with clips.