It's getting worse. Likely due to a lack of official condemnation and acknowledgement of the issue.
Here's the latest Frontlines match I had:
http://i.imgur.com/lXLPshb.jpg
Those players remained there for the entire match. Clearly they were using some sort of illegal program because they moved every now and then but otherwise didn't do very much at all. By the end of the match none of them had contributed anything to damage or healing numbers. I've come to enjoy PvP in this game and it's a real shame to see it being infested with botters - it punishes and discourages legitimate players from bothering which will impact queue times if it does not get dealt with in a timely fashion.
