I'm having trouble understanding what the practical difference between the transaction concept and something like RAII. It may just be the example they chose (goroutine processes an incoming request, does not "share" the contents with anyone else, and terminates when complete) but nonetheless I'm having a mental block. Can anyone clarify?

Note that I'm not saying that they should've used RAII along with existing GC, I'm just trying to distinguish the transaction concept and the RAII concept.