I think you are a little harsh in bashing the sources. Their value is that they serve as a distribution of press releases from many sources. That is exactly how a press release is supposed to be used. And I can go to a press-release redistribution site and see press releases from various organizations in a related field instead of having to check each organization individually.
Yes, please filter the bullshit. But submitting from press-release redistribution sites is ok. If it's of further interest, submit the original paper. In this case, the paper (scientific news) is old- it's the step in the business direction that is being disclosed.
Reducing duplicate submissions is an excellent point. I took the guideline to be more along the lines of "don't link articles like 'geez guys look at this cool article I found on wavepackets. Works for me!'" But I can certainly see the value of submitting the original PR if the site simply mirrors it.
Yes, please filter the bullshit. But submitting from press-release redistribution sites is ok. If it's of further interest, submit the original paper. In this case, the paper (scientific news) is old- it's the step in the business direction that is being disclosed.