I actually got asked if I was using some sort of Erebus exploit due to my heavy minion build from a fairly seasoned player (and the hero kills I was getting w/ minions alone)... if you don't know how to combat minion builds, at least at the early/mid levels, you'll probably be feeling some pain. I personally thinks its very smart balancing. A general shouldn't be the worlds greatest tank as they get minions... I don't see any reason why I shouldn't be able to be a medium strength DG and have very strong minions. Oh well... someone will call for a nerf at some point.
Nothing quite like that first moment when you get killed by minions alone and you are like WTF, though