Please keep in mind that this is politicians behaving badly, not Republicans behaving badly. Yes this time it was Republicans, but both parties do it.
The problem is horrendous set of incentives for politicians; something Larry Lessig is trying to do something about. http://www.mayday.us
This sounds like it falls on the right side of the (very bad) law.
Sounds like there's also serious doubt this is in any way illegal, e.g. this comment by "Daniel Tokaji, a professor of Constitutional Law at Ohio State University":
"A lot of things you and I would consider coordination are not coordination under the law. I don't think sharing polling data is going to be enough to establish that the campaign was materially involved in decisions about content, target audience or timing."
Outlawing "coordination" is a very dangerous slippery slope to go down, as Wisconsin recently showed.