I direct you to the prime example of timeliness: The Cross. It was also the most untimely way to do it, too. Waiting until 2005 would have spared Jesus' life.
The idea of a "time" to press certain things is absurd. Creationism isn't a political idea; it's just a fact. In six days God created the heavens and the earth. Withholding this fact is the equivalent of lying, and a lie that could lead to the damnation of people.
Waiting until 2005 would have spared Jesus' life?
I have no problem with that. Except the time and place to do it is in your church, not in a public school.
Christians make young earth creationism a political idea when they demand it be taught at public expense.