you've missed the mark
the idea isn't to create a new stepping stone into the current 6v6 format, but rather to replace it with something better entirely, to the point where the officially supported 6v6 lobbies are both the competitive and (semi)pub format
will it be better immediately without any rebalancing or effort on valve's end?
possibly/possibly not, but their intent to do something about balance has already been made clear in the original sal/extine thread