The EAs have different trading times and they trade different strategies (some trade price actions during active markets hours, and some trade during the quieter Asian hours), so it is unlikely that they will all open trades at the same time.
Nevertheless, it is true that this account is a high risk account. We expect the max DD can go up to 50-60%, but at the same time the yearly gain should be at least 100-200% or more. People should understand that there is no risk of margin call even with this high risk account, because the max loss on a single trade is capped at 3%, and as the account decreases in size, the trading lot size will go down as well. As long as people can withstand a DD of 50-60%, they can just leave the account running and it will eventually recover.
For people who are more conservative, we also have the MAM account running at 30% Risk. It has a max expected DD of less than 20%, and an expected annual return of 30-50%.