wow. Where did you get that from? The bible is allegorical not literal. To make sense of the development of language you need to understand migration patterns, the development of symbolism and also the relationship between facial structure and language and brain development. If you think that it is done process involving only moving from grunts into language you have an incomplete understanding of the complexity.
your classification system is also incomplete. That notwithstanding that many of the languages that are not classified are not because there is insufficient information on them, they are extinct languages or they aren’t decipherable. That they have not been classified proves nothing about how long language has been around or anything at all about evolution and language development.
