You are right that people should treat this as a "regular" flu, but the real issue that SARS highlighted at least here in Toronto is the horrible state of the current Canadian health care. The system was on the brink of collapsing when the epidemic ended. Many hospitals couldn't contain the spread, lacked fast response measures and access to medication required to treat patients. The system was just not prepared for an epidemic, which came as a shock to the public.
The threat of a highly virulent flu epidemic is real and this is why so much money is spend each year trying to predict the next emerging strain and create an effective vaccine each season.
The primary reason this swine flue stood out was because it's from the H1N1 strain, a variant of the strain that caused the "Spanish Flu" in 1918 which killed millions of people and spread globally. The vast majority of those killed were healthy adults because that particular variation of the virus actually benefited from a healthy immune system, through what is known as a "cytokine storm" where the body creates too many white blood cells which kill the person (block the air way passage, etc.). That's why when healthy adults started getting sick from the swine flu, it started raising concerns that another highly virulent strain of the flu has emerged.