Haven't watched either youtube video on here yet, but I can make some educated guesses.
Plane flies to Grozny, takes a SAM in the tail and loses the hydraulics, which takes out the tail controls as well. Let's assume all flight controls are lost as a result.
The plane can still be flown using the thrust of the engines to maneuver, albeit badly. United in Sioux Falls is a case where this worked out ok, JAL 123 did not fare as well.
To turn, you manage it like a twin screw boat. More power on the opposite engine to turn the way you want to go. Sounds simple? Not so much. In any under wing engine aircraft, if you add power, the moment of the thrust will point the nose up some because the thrust vector is below the center of gravity of the plane itself, so if you add power to the right engine the right wing will start rising as the plane starts turning left. It's gets busy because every change of power causes a 3d move of some sort. That United managed to hit an airport at all was impressive, that they were lined up on a runway was even more so. It becomes a not stop ballet of moving throttles trying to find the setting that gets you what you want and changing anything means you start all over again. That includes hitting a bump in the air.
The E190 guys obviously figured out the cruise part of the flight, but were unable to relearn how to fly it with the gear down, that changes the center of gravity, and how the plane reacts to power changes after, at a time where the margin of error as you try to land increases significantly. Unfortunately they didn't make it, but nearly half survived.
If you want the best ride in a plane sit on the wing, want worst ride, sit in the back, BUT it's the best place to be in a crash. First Class, pay more for least survivability.
HTH