They don't use G-suits because the air bladders will cause their wrists to move as they inflate/deflate. It's not that big a deal when you're 50+ feet from your wingman, but it's a disaster when you're only 18 inches away.
PLANESOLUTIONS has answered the question very nicely - it's effectively about compensation. Which pilots will be chosen for the new aircraft, and how much will they be paid for it? If SWA has previously made the contracts variant specific, then the pilots' union has a right to demand that the contracts continue to be variant specific, even if all variants have the same type rating.
Simply economics. Narrower seats weigh less, so there is less fuel burn thus lower costs. Narrower seats also require larger passengers to buy the second seat more often, thus more revenue. More revenue + lower costs = bigger bonuses for the execs and nothing left for the people actually doing the work to keep the airline running.
Calling this a "flyover" is disingenuous. It's much closer to a CAP (Combat Air Patrol), while a "flyover" would be the aircraft flying over the stadium before the game.
As the Falcon taxies behind the Lancer, you can see the one lined up on the runway begin its roll. At that point, the Lancer spools up to proceed onto the runway. Unfortunately, the Falcon is still behind it and the vertical stabilizer becomes a sail. I wonder what the controller who cleared the Falcon to taxi through there was busted down to. E-2? E-1?