A Nutshell: when is 200K not 200K?
not too heavy to take-off, it can still be too heavy to land?
Hitting the runway at 400’, 600’ foot per minute descent (or pick your number) generates additional forces throughout the airplane that running down the runway for takeoff does not.
If the jet weighs 200K and experiences a 1.5G touchdown force the effective weight is no longer 200K it is now 300K a 50% increase.