What those links assert was that the NEC-not Corbyn himself, but people on the NEC-meddled in the "longlists"(not even the shortlists, but the longlists) of candidates in a way that equally offended right-wingers and left-wingers. NEC meddling in the longlists in a way that seems to have pissed off right-wingers(sorry, "moderates") and left wingers in more or less equal measure-and which isn't something I ever came close to defending, for the record-has nothing in common with your implication that there was something like a uniform policy of the NEC uniformly imposing left-wing nominees on over two dozen constituency parties that ALL preferred a centrist candidate.
Nothing remotely close to what you alleged happened.
As to what DID happen-though the anti-Corbyn majority on the NEC was far MORE aggressive in imposing anti-Corbyn(and mostly antisocialist) Labour candidates in 2017, I don't defend that and never did.
I have always supported reinstating ever aspect of internal party democracy that Kinnock and Blair unjustifiably removed-there were never significant blocs of voters who'd have voted Labour, but ONLY if the rank-and-file had no say in policy anymore and only if the party was moved so far to the right on the issues that it wasn't even to the left of the Tories under Harold MacMillan anymore.
I always supported Open Selection, no matter who was leader.
I always supported the right of constituency parties to deselect sitting MPs who treated Labour principles and rank-and-file activists with contempt, who exhibit bigotry, who take the side of the bosses over the workers, who become arrogant, nasty and corrupt.
Having said that...and reminding you once again that Corbyn is no longer the leader, there is no longer any reason to keep attacking Corbyn OR to continue to demonize those allied with him.
Now...the question is the future.
And, since moving to the right of Corbyn on in any major policy eras is not going to gain Labour votes-nobody WANTS Labour to go back to the 2010 or 2015 platforms; if people like liked THOSE platforms, Labour would have won those elections.
Can you finally, FINALLY take part in this discussion in the present tense? To discuss not what you didn't like about Corbyn and his era-what you didn't like is obvious; you didn't like the fact that he didn't treat the Labour rank and file and the young as irrelevant scum, that he didn't accept the idea that Labour HAD to blur the differences and be run exclusively like a cynical elite who reduced politics to nothing but "it's enough that it would be US doing the same things they're doing", that he didn't believe that the party owed Netanyahu unquestioning support in whatever he does to Palestinians, that he didn't share your acceptance of the death-belief that history is over and that all that can be done from here on in is tiny bit of tinkering around the edges of the edges.
That is why you spent four yaers cheering on and goading on the anti-Corbyn, anti-socialist, anti-democracy cabal in the PLP and the party bureaucracy.
You did all that because all you cared about as forcing Corbyn out as leader by any means necessary-including, it is hard to avoid concluding, the means of senior Labour bureaucrats, people high up on the Labour payroll, acting to sabotage Labour's last two election campaigns, almost certainly stopping Corbyn from ousting the Tories in 2017 and aiding the Tories to a majority they might never otherwise have won in 2019.
Well, you got what you wanted...Corbyn is out.
So STOP MAKING EVERYTHING ABOUT CORBYN.
Move on already.