Almost forgot that he had said that. Great to see it again now in the lead up to the fight! Makes you really think that Gane might be a more difficult opponent, because Gane is a smarter opponent ,than Ngannou, and has a more diverse and technical arsenal, than Ngannou, and moves around easier than Ngannou. So Jon won't have to fear the power as much, but he still has to worry about a lot more weapons and Gane's movement might be enough to deal with whatever speed Jon has, now, as a not-so shredded HW.
The real question is the grappling though. I wouldn't be surprised if Gane has improved a whole lot in the grappling department in the last year, and he might have been better than what he looked like vs Francis, to begin with.
And, of course, how good is Jon's wrestling now and how fast and fluid can he move? And also, will Gane be able to use his own length well enough to negate Jon's length advantage, when grappling.
I'm not sure I buy that he didn't fear the last opponents and that's why he under-performed, but even if that is the case, then he might be underestimating Gane too, if his Russian sparring partner is to be believed.