Oh, I agree that replacing a full battery like the Leaf is rare, but the costs are what the costs are. Accidents happen, and the costs aren't small, regardless of the reason why it's being replaced.
> the cost of recharging network.
Great, I'm glad your BEV is that inexpensive to charge. However, how much did that charging STATION cost? Recent estimates for Tesla's are in the neighborhood of 250K USD each. I'd argue that they are getting built, and the economics are there, otherwise they wouldn't be built. However, when BEV's first started coming out you better believe the costs to develop that network of BEV stations was widely discussed (esp. irt who would pay for them).
My point is that a lot of similar BS arguments are made against Hydrogen by BEV fan bois. I've no issue with the point that Hydrogen isn't here TODAY, and that some of the issues it faces are large. But to argue (as too many have done) that any investigation into Hydrogen is a waste of time, and that BEV's are the ONLY solution is both short-sighted and wrong.