No it wasn't...it was a basic fact and it deserves our attention.
In the hands of those who actually know what they're doing, a Betta splendens can live up to 5 years at least. Some examples have even managed to reach a whole decade.
Unfortunately, the internet is awash with those who really don't know what they're doing and who managed to kill off their fish long before their time. Such people will then talk about lousy genetics, interbreeding or the detail that 'the fish was poorly when I bought it from the shop', rather than admit their own ignorance and/or poor care.
Such people then go on to tell everyone that the fish's demise was inevitable, because they only have a short life span anyways.
Whilst I believe strongly that the Betta remains one of the most abused fish in the hobby, ignorance about the potential life spans of most fish dominates and is probably a direct hangover from when fish were poorly cared for by the fishkeeping masses, their lives were short and they were even deemed as 'disposable'.
For example...Did You Know that the common Neon Tetra can live for a decade and reach two and a half inches in length?