This is a perfect example of what I said earlier regarding technical being just too subjective of a term to have every rider of all skill-levels agree on just one definition. I thought Tacoma's list was pretty accurate for single track riding but a bit incomplete for some of the skills that are required to navigate many of the more challenging single tracks I have ridden in different locations. For instance, being able to maintain your balance and navigate down a 6-8" wide path to traverse the full length of a 15-20' fallen log, or being able to descend a drop so steep that your rear wheel is lifted off the ground for most of the distance, or doing tail-whips to negotiate a very tight turn when bracketed by trees.

But that pretty much proves my point as well because each of us ride in different conditions and many of the skills that I developed when doing near vertical single tracks in the San Gabriel Mountain in SoCal, or skills that I developed negotiating some of the drop-offs and near vertical drops at Slickrock in Moab, UT, are completely useless here in Indy. The trails I ride here are actually more like what I rode in New Jersey and Maryland where you spend a lot of time navigating through wooded areas with only short burst climbs that are usually slick as hell and tight slick turns that immediately go up or down a few feet.

Either way though, I think that the more experience you get in the widest variety of terrian will change your own definition of "technical" over time.