The situation was pressing. For the Sanctuary orcs, things would not last without Ed for much longer. The reason was obviously their numbers. After suffering from so many battles, their combat force numbered less than 60.
This combat force didn't mean there were non-combatants that could be trained up to enforce that number. This so-called combat force was just any adult orc regardless of age or injury. If they could be considered an adult Sharog was counting them as part of their combat force. That meant the remaining orcs were all children.
Overall, they numbered less than 80 orcs. Which was pretty damn large for an orc tribe in the orc plains where Sharog originated from but quite small for Sanctuary. Her tribe had less than 50 and was dwindling rapidly from starvation for example. In that zone finding tribes of thirty was not rare.