No. I have never met anyone who is; just like having children. One can be more or less healthy than another but, I agree, no one is perfect.
In my view, marriage is partially about matching issues in a way that both people can be complimented by the couplehood on the road to becoming who they want to be. So, putting a clearly sexually active, nonreligious man with a 27 year old virgin who has a very slim chance of being able to be a match for him in the arena of intimacy within 6 weeks is worthy of comment and observation.
Again, I agree no one is perfect but, if observing "red flags" was outlawed, what the hell would we be discussing about the show on this forum?