It seems that he was rushed through because the EFL feared the club would be dead by the time the proper checks were done, so they just let him take it. The irony being that they’re now saying they could potentially give a 24-48 hour extension if it looks like there’s a genuine buyer, so they’re basically setting themselves up for the same thing all over again.
What I think this shows more than anything, as has been said already, is that the EFL are completely and utterly incompetent. Nobody there is fit to be in their jobs or has the slightest clue what the hell they’re doing.