It's not so much conventional wisdom as predominant wishful thinking. Everyone hypes up the possibilities for their piece of the grants, investors, and the media attention but every geneticist I've had a private conversation with has been little more than cautiously excited. CRISPR is the genetic equivalent to their first binary editor but the complexities of epigenetics and expression machinery have long been taught (and why everyone is so excited about it), as well as the giant missing pieces in embryology where we don't even have a cursory understanding of how to bootstrap an organism from a genome without artificially inseminating a very closely related species.