Never had an issue with auto-attack, I'm always just doing things with my DG.
Does get caught on corners, more often if you sending him farther away I've noticed, but also attacking things on other side of corner.
I'm pretty sure they handed the guy the ability to make this game off of ideas he gleaned from dota, true AOS is at the roots of dota, but dota is what made it popular.
My own criticism is in multiplayer, it's impossible to win after one team has gotten the advantage, either through "war effort," the flags, or them starting with really nice "favor" items, which I am growing to despise, since it punishes new players (seriously, only 10 points for losing a game despite ANY EFFORT put into it? just unbalances it towards those who hopped into multiplayer first.)
(yes I know it's a new game, but if you are a competant player of this style of game, and being new screws you over because everyone else has higher favor items, then it's a worthless feature, I have more fun fighting computers on hard and those can beat the crap out of me!)