lol you make it sound so easy. many of the positioning of JJ/BJJ are lock down movements, containment movements, etc. It's not that easy. I would suggest going and trying what you purpose on someone of skill in that area. You'll find it's not that easy to just "get out".Like the grappling section , if the opponent were to grapple with me , I would do anything to get out of the opponents' grappling move , by doing anything I can use striking him in the face , you see if I were to use grappling on the opponent himself , it can turn out to be a chess game . And I can get tired and the opponent may in turn have the advantage over me . So to reallly avoid this things from happening to me , I would get out of the opponents' grappling move or hold the minute I get the chance otherwise I ' m in trouble already .
their is no magic answer to the grappling equation such as you suggest. Yes "getting out" is the goal but just striking someone or biting, eye gouge, etc. or what ever is not as easy as you think from the positioning that grappling puts you in. grappling is about dominant position in most cases and it very hard to strike from a lot of those positions if you are in the opposite side of receiving.
learning grappling and how to nullify a lot of it is determinant on knowledge in that area and experience in doing it.