No, it means:
1. You have a lot of free time and can afford to replay the entire game from scratch all day long because of one wrong battle. Or...
2. You've never had to create a turn-by-turn report of your playthrough, where you might be asked to explain every move of each hero. I wonder, what's the maximum number of heroes you've ever controlled in a single day? :) For me, it's about 20 heroes, and one in-game day takes about 7 hours of real time (sometimes even more - it all depends on how seriously you're playing and the player's skill)... :D
Added 4 minutes later
and by the way, I attacked with 2000 gargoyles and lost only 200!!!