I feel this is unfair to the person. Especially if Alverez got fired by Bellator. Would you happen to know why industries have non-compete clauses? Are they only valid in only certain situations? Say I was Alverez's lawyer would I be able to put a contingent on the non-compete?
Sometimes the terms are different, like it's a 90 day non-compete if you get fired but 180 days if you leave voluntarily, but usually it doesn't make any difference.
It's to protect the assets that you are working on in sensitive industries. In Seattle's Jet Blue example, that CEO knew Jet Blue's business strategy for the immediate and long term, so it makes sense that they would want to be protected from him getting fired one day, hired as a "consultant" by Southwest the next week and targeting all the weaknesses or critical areas in their business plan.
In IT it's exceptionally important - a key player on the Call of Duty game could leave and go to EA and spill the beans on all the stuff they're working on for the next Call of Duty game so EA could put something better in Medal of Honor.
It is a negotiable point, usually the longer the non-compete the larger the severance package, or you can negotiate to have the non-compete limited or shortened if you leave involuntarily.