This dude has some serious issues. Engaging in numerology for one thing while claiming to be Christian.
Why would you suggest that the author has "issues" because of an interest in Numerology. (I thought, to be saved in Christianity, one only had to profess a belief that Christ was one's Savior.) Christianity is full of numerology. Only one who is unfamiliar with the Bible would condemn someone for displaying an interest in it.
Christianity actually has a rich heritage of symbolic numerology: seven days in a week, seven trumpets, the seven angels, the seven candlesticks in Revelation. Twelve tribes, twelve apostles, twelve gates in the holy city New Jerusalem. The 144,000 saints on mount Zion. Then there's the reference to "time, times, and half a time" which is also referred to as a period of 1,260 days and a significant 42 month period when Jerusalem would be under Gentile dominance. Then of course, there's the whole 666 thing.
The reference to the significance of the 14 generations probably stems from Matthew chapter 1, verse 17:
"So all the generations from Abraham to David are fourteen generations; and from David until the carrying away into Babylon are fourteen generations; and from the carrying away into Babylon unto Christ are fourteen generations."
Aside from the youthful hubris of the original article, I found the author's comments hopeful. Youth, in general, benefit from a sense of purposefulness and mission. If this "Fourteenth Generation" lives up to high expectations, they'll do well.