Enemies were approaching them, and they had no idea when the Giholos would launch their attack. Sadly, it seemed even Servina wasn't aware of that part of the plan. If she was, then she would have given it up to Celeste a long time back.
This meant, they had to drop everything and focus on training everyone so that they could at least defend themselves while Ashton and his group took down their major adversaries. Thankfully, they were already being trained to use the weapons created by Baiter, hence they did not have to go through much.
On top of that, Sheera was there with the remnants of the king's army. Thus the prospects of fighting back were looking good. As if that wasn't enough, Ashton had instructed Sven and Celeste to help make swordsmen and magicians out of the massive population they had.