And again:

That looked WAAAY short. It appeared the nose had just barely crossed the threshold when the mains hit.

Where is DXB? Are these videos both at Dubai? If so, I am 99.99% convinced the night landing was 500 ft short of the threshold.

As to cracks: one of the big delays in the 787 was cracking in the fuselage/wing-join area.

The F-18A had bulkhead cracks where the vertical fins bolt-on shortly after entering service (one of the fixes is that cheesy plate on top of the LEXs; it diverts the LEX vortex away from the vertical fins).

ALL the Block 50 F-16s (the one that 'replaced' my "worn out" F-4G) had their wings replaced (whole fleet) less than a year after entering service. Fatigue cracks in a 9-G wing (turns out it wasn't designed for the flexing caused by carrying two 800 lb HARMs). All the F-16Ns (used by Navy Weapon School) were grounded, I believe within three years of delivery...for fatigue cracks (and they were the lightest F-16s ever built, with no gun, and no bomb-dropping hardpoints).

As 11Fan said, there are always gremlins that surface during the initial operating period.