I wouldn’t say that (real) mountaineering is important on a DGT. There are some scrambles, but nothing requiring any actual technical climbing gear or skill.
I think Wandelaar answered my question. Some areas of the hike is not a walk in the park( so to say) I know that route falls under SANParks. Best is to contact them to get the Should’s and Should not’s
I know you have to join a group, they wouldn’t allow Solo hikers( for their Safety record)