If all your CX rides aren’t near death experiences then you’re doing it wrong. 😉
As above though, Llandegla is a lot of fun on a CX bike, the marin was good. If you can ride it on an MTB, chances are you can ride it on CX. It’s different but always a good laugh.[1]
[1] And I’m assuming here that ‘a good laugh’ for you involves terror, forearms pumped up so you look like the Hulk, a numb sac from getting hit between the legs by a bucking saddle, overshooting everything because your brakes don’t work, a couple of loose teeth from the ride and a selection of permanent hearing and vision problems.