I think that SWA attitude, so arrogantly prevalent through the years, is about to be excised so very painfully by the FAA and the media.
It is only to be expected that every new company will reach the point when they have a fatality (direct or indirect). Every transport company and many ordinary ones too, have to face this day. In humans we call it 'growing up' and 'maturing'. Whether the gowing up is being done by humans in their personal way, or by humans as a company, it always has it's horrible times. Hopefully, the child - and the company - become adults and are the better for what they have learnt.
Some individuals - and some companies - never grow up. This usually leads to prison and bankruptcy, or both. This crash and death/s will not harm SWA. It is what they do in the next 12 months and through the enquiry, that will harm them - or see them mature a little.