I don't qualify Granogue as technical.
Then again, I'm used to DE mountains. There was one section that they had spotters advising you to be careful and mind the steep, short downhill. I just rode the brakes a bit and made it down no issue. You'll have your share of roots and rocks- what trail doesn't. I would rate the course HILLS more than technical. You start with a climb, then climb again, then go into the woods, then climb again. Then you WALK through a tunnel (unless you have super balance and bike handling skills- trust me- WALK.) Then, you climb some more and run down a hill, over a log bridge that tests the ramp up of your front fork, then along the river and back up some more climbs..(not necessarily in that order)...blah blah blah. It was damp last year. Remember it raining during the race a bit. This made some of the rooty sections tricky, but I never went down once. Some spots you may find you need to hoof it. Be ready to test your climbing power/ skills.