I have no pity for Aereo here. They based their business model on a legal technicality, and SCOTUS simply applied an updated technological interpretation to an old law. Their investors were big time media guys (Barry Diller was a founder of both Fox and USA networks) who knew the risks they were taking: it didn't pan out for them. Aereo is not a story of a plucky startup fighting the system; it's just one part of the system fighting another part of the system over who gets more money. Had Aereo won this decision, the real winners would have been Comcast, DirecTV, AT&T and Verizon.
Is that supposed to be a bad thing? Public performances should be public! Location-shifting (at least within the initial broadcast area) and time-shifting should not need any additional licenses. Cable companies shouldn't have to pay for those particular actions either.
"The entire reason this law was written is because under an old law, cable companies ("community antenna television" in that day) were setting up antennas and running cable to multiple homes, charging the users for it, and not paying anything to the broadcasters/copyright holders."
I don't see what is wrong with this. Without that company, that person wouldn't be able to access the content - which is, itself, a "public performance." Otherwise, the person wouldn't be willing to pay for it. Either way, its an agreement between two private parties as to how they wish to access public information.
This is protectionism.