To be Christian? No. To believe God does not lie? No.
To clarify though, a Christian is someone who puts their faith and trust in Christ. They are a flawed individual who, by the grace of God, is forgiven. This is called justification. That person has much to learn, and will continue learning all throughout their lives. This is a process called sanctification. A person justified is going to heaven, but a person being sanctified still may have many beliefs counter to what the bible says or the interpretation of what it says. God will work with that person and grow them over time and through experienced.
For this reason, a person can be justified in Christ and not believe in YEC. They also may not have a complete trust in the truthfulness of the scripture at that point, but trust that Christ has forgiven them. This is why I answered as such at the top. As you study the word, you will see God does not lie, and he is fully speaking clearly to us as to what he has done. It is not a fable as some say. It is written in historic style, not poetic.
In regards to Kent Hobind, I don't know the man, nor have I heard/seen anything about him.