It's much harder to come up with a good solution why the Bakiraka/Kushans were able to "just defend" themselves as it's been presented so far. Only having to act against fantastic beasts a few episodes in gets rid of that problem for them.
The problem is that they addressed the Great Wave of the Astral World in the last episode. It was pathetically vague and evasive, sure, but they still did address it. And if the point of this whole affair is for Silat to end up with a big army, then this presumably won't result in a complete upheaval akin to what happened with Fantasia. Granted, it might go in another direction, but if so I don't know what the point would be.