Wonder if the FA was, in fact, seated at their station? I know what the article says, but I see things when deadheading around. FA's get complacent.
Also of interest: article says the SWA spokesperson declined to answer if the plane was inspected for damage after a potential "hard landing" (which is a Term of Art*; this article doesn't make that clear for the casual reader). Then it continued to fly for a few days. Again, assuming this is accurate reporting.
NTSB will sort it out with FDR analysis (if possible) and interviews.
No judgement here; it's a challenging airport. Speedy recovery to the flight attendant.
(*) Term of Art: "A term that has a specialized or restricted meaning within a particular field or trade."