Loking good, no reason why it won't/shouldn't survive.
Always let the seedling do its own thing, there is no need to use saliva and pruners to somehow "help it".
Membrane is not essential to the cotyledons, but what you did is very un-natural.......seeds "know" what to do.
Bag seeds can be a big gamble, they are often carrying dominant genes for hermaphroditism.
Much better to spend the money and get proper seeds with clean genetics.