I think calling out Dynamis is a little irrelevant. I'm on Lamia. I can get CT in 5 to 10 minutes on my level 100 character on any job, even tank.

CT being a newbie killer is more a reflection of how bad Dynamis is in general. How many random mid to late game trials are run killers there after getting through the wall that is CT?

It's a symptom to another problem.