there is no way they can be unaware of these things......IMO here is the answer...they don't care that much.....they just don't see a need to tighten up the refs, they like to add rules to the rules and in that manner show they are concerned....in reality they don't care that much.
They have made the rule book a book of interpretation.....not a book of stead fast rules.....How is a catch now determined? It can hit the ground if the guy has control of it, has 1 foot or 2 toe nails pointing out, the 1st finger on every hand crossed...etc....the rules have become a mass of words in which a ref can actually decide how those words were meant to be applied.
Obvious missed calls can be fixed today, a guy in a booth can relay down you missed that call and boom, it can be called. You can't get it 100% right and that's what they always say, but there are things that can be fixed when missed...they don't want to do it...they like it the way it is......They don't need tape of things they have seen already...they don't find it all that important to fix.
