Actually it gets easier, some people even thought it got nerfed, but they might have derpy level formula. I remember in early days of sever my 11th and 12th node were always stronger then me and i had to try, now i don't think i met someone with more power then me in past 2+ months. Not sure if it was caused by patch or hitting level 70~ ish but i wasn't only one who got this, people in my group noticed it as well so i guess it happens to all.