User blog comment:DJMatyas/Am I doing something wrong?/@comment-9369480-20130614215240/@comment-4068612-20130614225530

Season 3 especially favors aggressive play. Taking an early lead, snowballing, and closing out the game as soon as possible. It's one of the reasons more passive teams like the former CLG.EU (now Evil Geniuses) were/are doing so poorly in the LCS.

So while there's nothing inherently wrong with your (OP's) passive play, it is much preferred if you can succeed at aggressive play.

However, it seems that the enemy Xin Zhao was just angry that your defensive style was working and that he was getting outplayed. If you find that you win your lane most of the time and have an impact once lane phases end, you're fine.

tl;dr I agree with this guy's post. Passive play is fine. Successful aggressive play is even better.