This might be of interest to certain people. And I'm quoting directly from The Art of SWTHA , which,unlike previous "The Arts of....." actually details the development of the concepts,design and previsualization against a timeline and the evolution of the script and story. And the thing is you cannot blame JJ for some of the elements that have found their way into TFA.Alot of the choices had already been made for him.
"In a pivitol meeting on May 30th 2013, Carter picked the brains of his collective Visualists for Neo Imperial schemes and motivatioins.Jame Klyne recalls "Dennis said 'Well its called Star Wars where is our big thematic war in space?" And he then mentioned "What if they had the ability to take the energy of a star?"
The Forces darkside feeds off fear.And there is no more a base human fear than fear of the dark.Muren wondered if what if the Neo imperialists found a way to plunge the galaxy into darkness,metaphorically and actually by winking stars out of existance,one by one. The Star Killer sun crushing super weapon concept was born"
For any of you that don't know Dennis Muren was the visual effects supervisor for all of the OT and PT films and was part of a strong old school team led by Kathleen Kennedy to help develope creative concepts for the film. So the 3rd DS is NOT JJs idea and choice.Bit of a shock. He joined up in MAY after he had finished with ST:ITD and hadn't taken up scripting duties yet.
Infact I'm forming a conclusion that alot of the things included were as a result of him NOT saying no to people. He is the opposite of George in that he is a very inclusive director who is more of a collaborative person than a singular "visionary" and I suspect he recieved an awful lot of input from others about what should go into the story and didn't or couldn't prevent alot of them remaining in there. Rather like what happened in STITD. Some of the story work was very advanced when he took over.
You can of course say then hes not a strong enough director , but, given the huge pressure TFA put upon him, he was always going to be caught between Disney, ILM and the small matter of a $4 billion investment.
TFA is not a perfect SW film. Not in the same way TESB was, and many of the critisms raised here are entirely valid. Going to see a thing many times and then declaring it perfect doesn't remove the fact that for alot of people who really invest in how this universe operates that certain parts felt like a bad fit . Its a hugely strong return ,with some outstandingly great choices in character, casting , cinematography, set and prop design and visual effects in my opinion but it has some noticeably disappointing narrative ( and other) weaknesses. Most of which have been pointed out by many people here and elsewhere. So it ain't an "A" star but its a strong " B plus" from me. For people new to the series or who just wanted a great time without thinking to hard about whats been before ,then its an epically thrilling adventure like ANH was to some of us forty years ago.
The issue is not that Disney, Lucasfilm and JJ failed in anyway with this.They didn't ,not by a massive margin and this film contains amongst many other good thing some of the most thriling moments I've seen in the franchise yet. Many people were aching for TFA to flop horribly just to have something to fill their internet voids with and it isn't going to, so they are reduced to concentrating disproprtionately on the elements that didn't work for them.
BUT, going forward with the whole franchise, with the success of TFA safely acknowledged , Disney and LF now have the safety and time to experiment and devise much better scripts and stories without suffering and putting the pressures on everybody that may have flawed some of the things for some in TFA.
So a balanced "debate" on what people liked (or loathed) about it is only going to strengthen further franchise releases.