Maybe I saw different interview, but in mine Fury told that due to there were no videos of Ngannou real boxing fights, they did not know what to expect. All the knew Ngannou has speed and power. Not much to build tactics on. Well, if on October 28 we saw prepared Fury, who fully understood what to expect from Ngannou, then no doubt he would have huge troubles against Usyk. My offer if Fury should have a rematch was more addressed to those who say that Ngannou won 
But in general I would love to see fight against Usyk, then against Ngannou.
But in general I would love to see fight against Usyk, then against Ngannou.I was referring to this interview: https://www.youtube.com/watch?v=YTOFDVNzMM0 in which he said both, that he came prepared and didn't underestimate Francis, and also said what you've mentioned, that they had no clue how good or bad Francis was in boxing.
Nevertheless, if a man who had no previous boxing fight just casually knocks down the lineal champion and was close to winning the fight - this puts a dent in boxing as a sport and Fury definitely has something to prove here. It's in everyone's interest to see Fury getting the job done right.
Obviously, if I had to choose between Fury Vs Usyk and Fury Vs Ngannou 2, I'd choose Usyk, but there's no reason we can't have both of those fights (Usyk first, Ngannou later).