BPL pushes forward with no regard to interference concerns

BPL (broadband over powerlines) is pushing forward according to CNet’s reporting of a FCC decision. While there has been resistance by amateur radio operators, and other spectrum users, FCC has made the decision probably due to the money behind the ventures.
Why is this a terrible thing? Powerlines are generally not RF shielded. Thus, there is tremendous interference when you run data across it instead of just power. Even as it is, if you drive under a high voltage line, any short-distance FM transmitter is already wiped out by interference. Data transfer would increase that interference by multiple folds.
Those behind the power lines are looking for another business opportunity to use without spending money, but the amateur radio operators have a significantly good point. The interference not only interferes with HAM bands, but also a signficant amount of police/military bands. Interference does not discriminate. There has been talks about installing band filters, but filters will not stop the line itself from emitting interference.
Amusing that the filter technology is a shoddy attempt to throw at non-technology folks to throw them off the interference path. Another reason why interfering with HAM radio is very bad. In both recent natural disasters (Katrina, and the tsunami), HAM radio operators were the first along the lines of communication. If you have any interference, those first responders would be in some terrible situations without any tie to the outside world. Is that what the people want?
BPL in essence is a great idea and technology. It’s also been around for half a century. While data transferrance has been solved, there is no way any of the energy companies will shield their existing lines. If that’s the case, then what is the point of pushing old technology that can be duplicated by wireless means without as many implications?