The article takes on an entirely different tone if you extract several key sentences:
1) "The people who described the contacts to Reuters said they had seen no evidence of wrongdoing or collusion between the campaign and Russia in the communications reviewed so far." 
2)"In the conversations during the campaign, Russian officials emphasized a pragmatic, business-style approach and stressed to Trump associates that they could make deals by focusing on common economic and other interests and leaving contentious issues aside, the sources said."
3) "Veterans of previous election campaigns said some contact with foreign officials during a campaign was not unusual, but the number of interactions between Trump aides and Russian officials and others with links to Putin was exceptional."