By trails I mostly mean maintained dirt trails found in state/national parks, but I have hit some good bumps/holes in this thing. I got a suspension seatpost and I hardly feel bumps at all anymore.
Can you show me an example of technical terrain where this line would be drawn?
It's pretty rocky and you can carry a ton of speed in some parts. It will definitely eat up cheaper bikes if you aren't careful.
If you want to find more examples of why cheaper bikes struggle to handle that type of stuff, I'd look up "walmart bikes vs mtb trail" or something along those lines on youtube. Lots of videos and they are usually somewhat entertaining. That said, your bike looks better than those and if you respect its limits, then it should be okay. The trails you describe sound fine for that type of bike, just be careful on hard bumps and stuff.
Can you show me an example of technical terrain where this line would be drawn?