Questions about Logan Lucky - SPOILERS

so, my main problem with the movie is the script. it seemed to rely too much on luck and/or deus ex machina and it didn't seem to be complex enough in motivation of each character or their actions. but maybe I just missed a whole lot of it.

A) why would West Virginia be portrayed as full of borderline retarded rednecks? Pretty much anywhere you looked? Across all proffesions and social status it seemed. WHY?

B) why was the money left behind the dumpster? To get the FBI to drop investigation? To help insurance freud? Or was it a mistake? 

C) what happened with the "IT wiz" and his helper at the end? Were they tricked or…?

D) how could they possibly know the Jail Warder would hold off calling the firemen till EXACTLY the moment they needed to hitch a ride back?

E) do you realize how many people they would have had to cooperate with/bribe/swear into secrecy to pull this off? It showed SO MANY people cooperating. didn't look credible that it wouldn't leak or at least get discovered by the FBI post-fact.

F) Why was the sister involved, what was the "big significant reveal" at the end? (with the gate and all - what did she do there and why?)

G) what did the cockroaches do? Just get the access inside? ok, then why paint them or whatever she was doing with them?

H) why would the nascar driver lie about not seeing them? Just to get back at Seth McFarlane? Even if so - I mean how could they rely on it- again PURE luck it seems. Was the whole movie supposed to say "look they just had a lot of luck - even retards can pull off a heist with enough luck"?

I) were there no cameras ANYWHERE in the tunnel so the owners or the FBI couldn't actually watch the entire group of people walking in, out, around etc?

J) the end - was the Hillary Sawnks FBI agent there "to stay" to investigate or did she mean she was into Adam Driver and dropped the investigation?

ok thats it for now….