Kings Creek Station to Glen Helen Resort Larapinta Drive

Exactly. We came through less than a week ago. As long as your vehicle and tyres are in good nick and you drive to conditions, there should be no dramas as long as there hasn't been rain.

We did it early June. As others have said, just another dirt road, drive to the conditions. If it has been wet and the road is still damp, it may be a different story, but not if it is dry (unless cut up buy others after rain).
The first section to the Herminsburg turnoff is bitumen (despite what some maps my show), then dirt to Kings Creek.
We were in a Subaru Forster with a 1100 Kg camper trailer, our friends we in a 2WD Ford Territory towing a 17' van.
I knew where we were going. Some weeks later he said "did you know that road is marked as 4WD only??"
We averaged about 50-60 K/Hr for the whole dirt section with some sections 40K/Hr, other 85K/Hr.