No worries, just though you were correcting me. Haha
Unless you have done heaps of KMs or run it on shit oil then a flush isn't crazy important because you shouldn't have big sludge build up, different story for older engines.
I only had to do it because of the Synth to Mineral change. I was also told I could change the oil with a cheap mineral first (no additive), run it, drain it and then put in the good stuff. That's more expensive tho..