Stu - you would think so, but this is the USA, where there is a hidden level of politics called 'lobbying'....
SWA has some of the most influential lobbyists (look at the Wright repeal efforts), and I am certain all kinds of phasers-on-stun will be applied here to stop any recommendations for change to SWA's modus-operandi by the NTSB. Watch this space...
Any US corporation would do the same, BTW, not just SWA.